Document:

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                                                                    EXHIBIT 10.7
                                                                             RDA
                                                                     CONSULTANTS
                                                                         LIMITED

                        STOCK OPTION PLAN AND AGREEMENT
                        -------------------------------

     Agreement made this 25th day of August, 1995, between RDA Consultants
Limited, a corporation organized under the laws of the State of Delaware,
hereinafter referred to as "the corporation," and R. Donald Awalt, a regular
salaried employee or an officer of the corporation, hereinafter referred to as
"the employee."

                                   RECITALS
                                   --------

     By action taken by the Board of Directors of the corporation, and approved
by the stockholders of the corporation, the corporation has adopted an
employees' stock option plan, as follows: The corporation desires to make
available shares of its common stock for purchase by the employee and others on
favorable terms in the event of public offering of such stock, thereby providing
an incentive to the employee to acquire a propriety interest in the corporation
and thereby share in its success, with added incentive to work effectively for
and in the corporation's interest.

     In consideration of the mutual covenants and promises hereinafter set forth
and for other good and valuable consideration, the parties hereto agree as
follows:

                                  SECTION ONE
                                  -----------

                                     GRANT
                                     -----

     The corporation hereby grants to the employee, as a matter of separate
agreement and not in lieu of salary or any other compensation for services, the
right and option, hereinafter called the option, to purchase all or any part of
an aggregate of Zero and 374/1,000 shares
<PAGE>

(0.374) of authorized but unissued common stock of the corporation on the terms
and conditions herein set forth.

                                  SECTION TWO
                                  -----------

                                     PRICE
                                     -----

     The purchase price of said shares of common stock subject to this option
shall be 100% of the most recent valuation of market value of the stock as
calculated annually by the corporation's independent CPA firm. The most recent
valuation as of the date of this agreement was calculated as of March 31, 1995,
and set the price of one share of the corporation's stock at Fifteen Thousand
Dollars ($15,000).

                                 SECTION THREE
                                 -------------

                               WHEN EXERCISABLE
                               ----------------

     (a)  The option may not be exercised prior to 1 year from the date of this
Agreement.

     (b)  In addition, the option may not be exercised prior to the initial
public offering of the stock of the corporation.

     (c)  The option may not be exercised in any amount later than ten (10)
years from the date of the initial public offering of the stock of the
corporation, and may terminate prior thereto pursuant to the provisions of
Section Five of the Agreement.

                                 SECTION FOUR
                                 ------------

                                   TRANSFER
                                   --------

     The option shall not be transferable by the employee otherwise than by will
or the laws of descent and distribution. During the lifetime of the employee,
the option shall be exercisable only by him/her.

                                 SECTION FIVE
                                 ------------

                                       2
<PAGE>

                            TERMINATION OF EMPLOYEE
                            -----------------------

     (a)  If, prior to 5 years from the date of this Agreement, the employee's
employment with the corporation shall be terminated by the act, death, or
incapacity of the employee, the employee's right to exercise the option shall
terminate and all rights hereunder shall cease.

     (b)  If, on or after 5 years from the date the option is granted, the
employee's employment with the corporation shall be terminated by reason of the
death of the employee, his/her personal representative shall have the right,
within three months after such death, to exercise the option if the right to
exercise the option shall have accrued at the date of such death except to the
extent the option theretofore shall have been exercised, and should the right to
exercise the option not have accrued, the employee's personal representative
shall have the right within three months after it shall have accrued to exercise
the option.

     (c)  If, on or after 10 years from the date the option is granted, the
employee's employment with the corporation shall be terminated by the employee
for any reason except death, the employee shall have the right, within three
months after such termination, to exercise the option if the right to exercise
the option shall have accrued at the date of such termination of employment
except to the extent the option theretofore shall have been exercised, and
should the right to exercise the option not have accrued, the employee shall
have the right within three months after it shall have accrued to exercise the
option.

     (d)  If at any time the employee's employment with the corporation shall be
terminated by the corporation, with cause, the employee's right to exercise the
option shall terminate and all rights hereunder shall cease. For the purposes of
this Agreement, "with cause" is defined as any failure of the employee to
fulfill his/her obligations properly and on time, or any other violation of the
terms of employment.

                                  SECTION SIX
                                  -----------
                                    PAYMENT
                                    -------

                                       3
<PAGE>

     Payment for shares of stock purchased upon exercise of the option shall be
made in full  in cash, except as otherwise provided in Section Eight (c).

                                 SECTION SEVEN
                                 -------------

                   ADJUSTMENT OF NUMBER OF SHARES AND PRICE
                   ----------------------------------------

     The number of shares of stock subject to the option and the option price
per share shall  be appropriately adjusted for any increase or decrease in the
number of outstanding shares of common stock of the corporation resulting from
payment of a stock dividend on the common stock, a subdivision or combination of
shares of the common stock, or a reclassification of the common stock, and, in
accordance with the provisions contained in Section Eight in the event of a
merger or consolidation in which the corporation shall be the surviving
corporation.

                                 SECTION EIGHT
                                 -------------

                       EFFECT OF MERGER OR CONSOLIDATION
                       ---------------------------------

     (a)  After any merger of one more corporations into the corporation, or any
consolidation of the corporation and one or more corporations in which the
corporation shall be the surviving corporation, the employee shall, at no
additional cost, be entitled, upon any exercise of the option, to receive,
subject to any required action of stockholders, in lieu of the number of shares
as to which the option shall then be so exercised, the number and class of
shares of stock or other securities to which the employee would have entitled
pursuant to the terms of the agreement of merger or consolidation if at the time
of such merger or consolidation the employee has been a holder of record of a
number of shares of common stock of the corporation equal to the number of
shares as to which the option shall then be so exercised.

     (b)  Comparable rights shall accrue to the employee in the event of
successive mergers or consolidations of the character described in Section Eight
(a).

     (c)  Upon any merger of one or more corporations into the corporation, any
consolidation of the corporation and one or more corporations, or any
acquisition of the corporation by one or more corporations, if the corporation
shall not be the surviving

                                       4
<PAGE>

corporation, the Board of Directors will make available one or more of the
following alternatives and the employee shall elect one of the available
alternatives immediately prior thereto:

          (1)  exercise the option upon payment in cash pursuant to Section Six,
either retaining the shares so purchased or selling them to the surviving
corporation at the price per share as determined by the terms of the merger,
consolidation or acquisition.

          (2)  exercise the option without any cash payment, selling the shares
so purchased to the surviving corporation at the price per share determined by
the terms of the merger, consolidation or acquisition, receiving from the
surviving corporation the value of the shares as determined by the terms of the
merger, consolidation or acquisition, less the option price as determined
pursuant to Section Two.

          (3)  exercise the option without any cash payment, selling as many of
the shares so purchased to the surviving corporation at the price per share
determined by the terms of the merger, consolidation or acquisition as to equal
the option price as determined pursuant to Section Two, retaining the remaining
shares.

          (4)  retain the option unexercised.

                                 SECTION NINE
                                 ------------

                     NECESSITY TO BECOME HOLDER OF RECORD
                     ------------------------------------

     The employee or a transferee of the option shall have no right as a
shareholder with respect to any share covered by the option until he or she
shall have become the holder of record of such share. No adjustment shall be
made for dividends or cash distributions, ordinary or extraordinary, whether in
cash, securities, or other property, or distributions or other rights in respect
of such share for which the record date is prior to the date on which he or she
shall become the holder of record thereof.

                                  SECTION TEN
                                  -----------

                  RESERVATION OF RIGHT TO TERMINATE EMPLOYMENT
                  --------------------------------------------

                                       5
<PAGE>

     Nothing contained in this option agreement shall restrict the right of the
corporation to terminate the employment of the employee at anytime, with or
without cause.  The termination of employment of the employee, regardless of the
reason therefore, shall have results provided for in the option agreement.

                                SECTION ELEVEN
                                --------------

                             PARTIES BOUND BY PLAN
                             ---------------------

     Each determination, interpretation, or other action made or taken pursuant
to the provisions of the plan by the board of directors shall be final and shall
be binding and conclusive for all purposes on the corporation and employee and
their respective successors in interest.

                                SECTION TWELVE
                                --------------

                             DUTIES OF CORPORATION
                             ---------------------

     The corporation will at all times during the term of this option:

     (a)  Reserve and keep available for issue such number of shares of its
authorized and unissued common stock as will be sufficient to satisfy the
requirements of the option agreement;

     (b)  Use its best efforts to comply with all laws and regulations which, in
the opinion of counsel for the corporation, shall be applicable thereto.

                               SECTION THIRTEEN
                               ----------------

                             CONDITIONAL EXERCISE
                             --------------------

     The option is subject to the requirement that, if at any time the board of
directors of the corporation shall determine, in its discretion, that the
listing, registration, or qualification of the shares of common stock subject to
the option upon any securities exchange or under any state or federal law, or
the consent or approval of an governmental regulatory body, is necessary or

                                       6
<PAGE>

desirable as a condition of, or in connection with, the granting of the option
or the issue or purchase of shares under the option, the option may not be
exercised in whole or part unless such listing, registration, qualification,
consent, or approval shall have been effected or obtained free of any conditions
not acceptable to the board of directors of the corporation.

                               SECTION FOURTEEN
                               ----------------

                            COVENANT NOT TO COMPETE
                            -----------------------

     In consideration of being afforded the opportunity to participate in this
stock option plan upon the aforegoing terms and conditions, employee hereby
agrees that during his/her employment and for period of one (1) year commencing
on the date upon which employee shall leave the employ of the corporation for
any reason, employee shall not accept or agree to accept employment with or
provide services, competitive to RDA's own, to any of RDA's past or present
customers.

     As a violation by the employee of the provisions of this Section could
cause irreparable injury to the corporation and there is no adequate remedy at
law for such violation, the corporation shall have the right, in addition to any
other remedies available to it, at law or in equity, to enjoin the employee in a
court of equity from violating such provisions.

     In witness whereof, the parties have executed this stock purchase agreement
on the date first above written.

WITNESS:                              RDA Consultants Limited

                                          /s/ Stephen F. Kupres
----------------------------------    By:--------------------------------

                                          /s/ R. Donald Awalt
----------------------------------    -----------------------------------
                                              R. Donald Awalt, Employee

                                       7
<PAGE>

                SCHEDULE OF SUBSTANTIALLY IDENTICAL AGREEMENTS

     The filed agreement is substantially identical in all material respects to
RDA's agreements with the following employees, except for the material details
set forth below:

<TABLE>
<CAPTION>
                                                  Number of shares underlying
                                                  options granted (not adjusted for
Employee                              Date        subsequent stock splits)            Employee signature
--------                              ----        ------------------------            ------------------
<S>                                   <C>         <C>                                <C>
William E. Ambrose                    8/25/95      0.374                              /s/ Willaim E. Ambrose

Jay M. Basen                          8/25/95      0.374                              /s/ Jay M. Basen

Stephen F. Kupres                     8/25/95      0.374                              /s/ Stephen F. Kupres

Steven N. Landsman                    8/25/95      0.374                              /s/ Steven N. Landsman
</TABLE>

                                       8<PAGE>

                                                                    EXHIBIT 10.8

                             RDA CONSULTANTS LIMITED

                                STOCK OPTION PLAN

     1. Purpose of the Plan. Under this Stock Option Plan (the "Plan") of RDA
        -------------------
CONSULTANTS LIMITED (the "Company") options may be granted to eligible employees
to purchase shares of the Company's capital stock. The Plan is designed to
enable the Company to attract, retain and motivate its employees by providing
for or increasing the proprietary interests of such employees in the Company.
The Plan provides for options which qualify as incentive stock options ("ISO")
under Section 422 of the Internal Revenue Code of 1986, as amended (the "Code"),
as well as options which do not so qualify ("Non-ISO"). ISOs and Non- ISOs shall
sometimes collectively be referred to as "options."

     2. Stock Subject to Plan. The maximum number of shares of stock for which
        ---------------------
options granted hereunder may be exercised shall be four million five hundred
thousand (4,500,000) shares of common stock with par value of $.001, subject to
the adjustments provided in Sections 10 and 11. Shares of stock subject to the
unexercised portions of any options granted under this Plan which expire or
terminate or are cancelled may again be subject to options under the Plan. When
the exercise price for an option granted under this Plan is paid with previously
outstanding shares or with shares as to which the option is being exercised, as
permitted in Section 8, the total number of shares of stock for which further
options may be granted under this Plan shall be irrevocably reduced by the total
number of shares for which such option is thus exercised, without regard to the
number of shares received or retained by the Company in connection with that
exercise.

     3. Eligible Employees. The employees eligible to be considered for the
        ------------------
grant of options hereunder are any persons regularly employed by the Company on
a full-time, salaried basis. Non-ISOs may be granted to an employee, officer or
director of the Company, regardless of whether the director is an officer or
employee. Each person receiving options shall sometimes be referred to as
"optionee."

     4. Minimum Exercise Price. The exercise price shall be determined by the
        ----------------------
Committee (hereinafter defined). The exercise price for each ISO granted
hereunder shall be not less than 100% of the fair market value of the stock at
the date of the grant of the option; provided, that, if an ISO is granted to a
person who, on the date of grant, owns, either directly or indirectly within the
meaning of Section 424(d) of the Code, more than ten percent (10%) of the total
combined voting power of all classes of stock of the Company or of an Affiliate
of the Company, then the option price specified in the ISO shall be at least one
hundred ten percent (110%) of the fair market value, on the date of grant, of
the shares of common stock subject thereto.

     5. Nontransferability. Any option granted under this Plan shall by its
        ------------------
terms be nontransferable by the optionee other than by will or the laws of
descent and distribution and is exercisable during the optionee's lifetime only
by him or by his guardian or legal representative. No option shall in any manner
be liable for, or subject to, debts, contracts, liabilities, engagements or
torts of optionee.
<PAGE>

          5.1. If an optionee ceases to be employed by the Company by reason of
such optionee's death, any options held by such optionee shall pass to the
person or persons entitled thereto pursuant to the will of the optionee or the
applicable laws of descent and distribution (such person or persons are
sometimes herein referred to collectively as the "Qualified Successor" of the
optionee), and shall be exercisable by the Qualified Successor in accordance
with the terms of the applicable option agreement for a period of one (1) year
following the death of optionee.

          5.2. In the event a guardian (the "Guardian") is appointed for an
optionee whose employment is terminated by the Company by reason of such
optionee's disability, as defined in Section 22(e)(3) of the Code, any option
held by such optionee that could have been exercised immediately prior to such
termination of employment shall be exercisable by the Guardian of such optionee
for a period of one (1) year following the termination of employment of such
optionee.

          5.3. If an optionee who has ceased to be employed by the Company or by
any Affiliate of the Company by reason of such optionee's disability, as defined
in Section 22(e)(3) of the Code, dies within six (6) months after the
termination of such employment, any option held by such optionee that could have
been exercised immediately prior to his or her death shall pass to the Qualified
Successor of such optionee, and shall be exercisable by the Qualified Successor
for a period of one (1) year following the termination of employment of such
optionee.

          5.4. Notwithstanding anything to the contrary in this Plan, except as
otherwise provided in an applicable option agreement, the vesting of options
held by a Qualified Successor or exercisable by a Guardian shall cease on the
date the optionee's employment is terminated for any reason, including, without
limitation, death or disability.

          5.5. In the event that two or more persons constitute the Qualified
Successor or the Guardian of an optionee, all rights of such Qualified Successor
or such guardian shall be exercisable, if at all, by the unanimous agreement of
such persons.

          5.6. Employment shall be considered as continuing intact during any
military or sick leave or other bona fide leave of absence if the period of such
leave does not exceed ninety (90) days or, if longer, for so long as the
optionee's right to reemployment with the Company or an Affiliate thereof is
guaranteed either by statute or by contract. If the period of such leave exceeds
ninety (90) days and his or her reemployment is not guaranteed, then his or her
employment shall be deemed to have terminated on the ninety-first (91st) day of
such leave.

     6. Maximum Option Term/Limitation on Grant of ISOs. No option granted under
        -----------------------------------------------
this Plan may be exercised in whole or in part more than ten years after its
date of grant; provided, however, if an ISO is granted to a person who, on the
date of grant owns, either directly or indirectly within the meaning of Section
424(d) of the Code, more than ten percent (10%) of the total combined voting
power of all classes of stock of the Company or of an Affiliate of the Company,
the period of time during which the option shall be exercisable shall in no
event be more than five (5) years following its date of grant.

          If the aggregate fair market value of stock with respect to which ISOs
first become exercisable by an optionee in any calendar year exceeds $100,000,
taking into account stock subject to all ISOs granted by the Company which are
held by such optionee, the excess will be treated as

                                      -2-
<PAGE>

Non-ISOs. To determine whether the $100,000 limit is exceeded, the fair market
value of stock subject to options shall be determined as of the date of grant of
the options. In reducing the number of options treated as ISOs to meet the
$100,000 limit, the most recently granted options shall be reduced first. If a
reduction of simultaneously granted options is necessary to meet the $100,000
limit, the Company may designate which stocks are to be treated as stock
acquired pursuant to an ISO.

     7. Plan Duration. Options may not be granted under this Plan more than ten
        -------------
years after the date of the adoption of this Plan, or of shareholder approval
thereof, whichever is earlier.

     8. Payment. Payment for stock purchased upon any exercise of an option
        -------
granted under this Plan shall be made in full in cash concurrently with such
exercise, except that, if and to the extent the instrument evidencing the option
so provides and if the Company is not then prohibited from purchasing or
acquiring shares of such stock, such payment may be made in whole or in part
with shares of the same class of stock as that then subject to the option,
delivered in lieu of cash concurrently with such exercise, the shares so
delivered to be valued on the basis of the fair market value of the stock
(determined in a manner specified in the instrument evidencing the option) on
the day preceding the date of exercise. If and while payment with stock is
permitted for the exercise of an option granted under this Plan in accordance
with the foregoing provision, the person then entitled to exercise that option
may, in lieu of using previously outstanding shares therefor, use some of the
shares as to which the option is then being exercised.

     9. Administration. The Plan shall be administered by the Board of Directors
        --------------
of the Company (the "Board") or by a committee of the Board appointed in
accordance with this Section 9. (The Board, or the committee, if appointed, will
be referred to in this Plan as the "Committee").

          At any time, the Board may appoint a Committee, consisting of not less
than two of its members to administer the Plan on behalf of the Board in
accordance with such terms and conditions not inconsistent with this Plan as the
Board may prescribe. Once appointed, members of the Committee shall continue to
serve until otherwise directed by the Board. From time to time the Board may
increase the size of the Committee and appoint additional members, remove
members (with or without cause) and appoint new members in their place, fill
vacancies however caused, and/or remove all members of the Committee and
thereafter directly administer the Plan.

          Notwithstanding the foregoing provisions of this Section 9, if the
Company registers any class of any equity security under Section 12 of the
Securities Exchange Act of 1934, as amended (the "1934 Act"), from the effective
date of such registration until six months after the termination of such
registration, the Plan shall be administered as follows:

          The Plan shall be administered by the Board or by the Committee
appointed in accordance with the following procedures:

          At any time, if the Board is unable to act under state law or if the
Board, in its discretion desires, it shall appoint two or more of its members,
all of whom are Non-Employee Directors, to the Committee to administer the Plan
on behalf of the Board in accordance with such terms and conditions not
inconsistent with this Plan as the Board may prescribe. Once appointed, the
Committee shall continue to serve until otherwise directed by the Board. From
time to time, the

                                      -3-
<PAGE>

Board may increase the size of the Committee and appoint additional members (all
of whom shall be Non-Employee Directors), remove members (with or without cause)
and appoint new members in their place, fill vacancies however caused, or remove
all members of the Committee and thereafter directly administer the Plan so long
as the Board may act under state law. At no time shall a person who is not a
Non-Employee Director serve on the Committee appointed under this Section, nor
shall such Committee at any time have been less than two members. The term
"Non-Employee-Director" shall be as defined in 17 C.F.R. 240.16b-3(b)(3)(i), as
the same may be amended from time to time.

          The Committee shall have the authority to: administer the Plan in
accordance with its express terms; determine all questions arising in connection
with the administration, interpretation, and application of the Plan, including
all questions relating to the value of the common stock; correct any defect,
supply any information, or reconcile any inconsistency in such manner and to
such extent as shall be deemed necessary or advisable to carry out the purpose
of the Plan; prescribe, amend, and rescind rules and regulations relating to the
administration of the Plan; determine the duration and purposes of leaves of
absence which may be granted to participants without constituting a termination
of employment for purposes of the Plan; select, based on the eligibility
criteria set forth herein, those officers, employees and directors to whom
options shall be granted; determine whether the Company shall grant ISOs or
Non-ISOs, the terms and provisions of the respective option agreements to be
entered into with such persons (which need not be identical with the terms of
any other such agreement and which may include, without limitation, provisions
granting to one or more officers of the Company, a proxy covering the shares
acquired by the optionee upon exercise of one of more options), when such
options shall be granted and the number of shares of common stock subject to
each option; convert an ISO into a Non-ISO in accordance with Section 16 below;
and; make all other determinations necessary or advisable for administration of
the Plan.

          Exercise of the foregoing authority by the Committee shall be
consistent with the intent that the ISOs issued under the Plan be qualified
under the terms of Section 422 of the Code, and the Non-ISOs shall not be so
qualified. All determinations made by the Committee in good faith on matters
referred to in this Section 9 shall be final, conclusive, and binding upon all
persons. The Committee shall have all powers necessary or appropriate to
accomplish its duties under this Plan.

          With respect to persons subject to Section 16 of the 1934 Act,
transactions under the Plan are intended to comply with all applicable
conditions of Rule 16b-3 and its successors under the 1934 Act. To the extent
any provision of the Plan or the actions of the Committee, or the members
thereof, fail to comply, such provision or action shall be deemed null and void
to the extent permitted by law and deemed advisable by the Committee.

          With respect to each option to be granted to a person designated by
the Committee in accordance with this Section, the Committee shall specify the
following terms: Whether the option is an ISO or a Non-ISO; the number of shares
of common stock subject to purchase pursuant to the option; the date on which
the grant of the option shall be effective (the "date of grant"); the price at
which and time period during which the option shall be exercisable.

                                      -4-
<PAGE>

          Any vesting schedule pursuant to which the right of the person to
exercise the option shall be contingent, it being intended that the Committee
shall have complete discretion with respect to the terms of such vesting
schedule, including, without limitation, discretion (a) to allow full and
immediate vesting upon grant of the option, (b) to permit partial vesting in
stated percentage-amounts based on the length of the holding period of the
option, (c) to permit full vesting after a stated holding period has passed, (d)
to permit vesting only upon the satisfaction of financial or other performance
criteria established and specified by the Committee in the option agreement, or
(e) with the consent of the person and subject to the limitations set forth
herein, to modify the vesting schedule of any outstanding option.

          At the discretion of the Committee, any Optionee may be required to
enter into an agreement with the Company, and such other parties designated by
the Company whereby the optionee agrees not to sell any shares of common stock
previously acquired upon exercise of any option, then held by the person for a
stated period of time, such period not to exceed 180 days, before and after the
initial public offering of the Company's securities under the Securities Act of
1933, as amended; and such other terms and conditions as the Committee deems
advisable and as are consistent with the purpose of this Plan; all shares of
common stock issued upon exercise of an option shall be subject to the Company's
rights under Section 13 below. Notwithstanding anything to the contrary in this
Plan, if an option is granted to a person who, on the date of grant or at any
time thereafter, is subject to Section 16 of the 1934 Act, at least six (6)
months must elapse from the date of grant of the option to the date of
disposition, as defined in Section 424(c) of the Code, of the common stock
issued upon exercise of such option.

     10. Adjustments. If there is a material alteration in the capital structure
         -----------
of the Company on account of a reorganization, merger, recapitalization,
exchange of shares, stock split, reverse stock split, stock dividend, or
otherwise, the Committee shall make such adjustments to this Plan and to the
options then outstanding under this Plan as the Committee determines to be
appropriate and equitable under the circumstances so that the proportionate
interest of that holder of any such outstanding option shall, to the extent
practicable, be maintained as before the occurrence of such event. Such
adjustments may include, without limitation, (a) a change in the number of, or
kind of shares of stock of the Company covered by the options, and/or (b) a
change in the option price payable per share; provided, however, that the
aggregate option price applicable to the unexercised portion of existing options
shall not be altered, it being intended that any adjustments made with respect
to such options shall apply only to the price per share and the number of shares
subject thereto. For purposes of this Section 10, neither (i) the issuance of
additional shares of stock of the Company in exchange for adequate consideration
(including services), nor (ii) the conversion of preferred shares of the Company
or any other instrument convertible into common stock, shall be deemed material
alterations of the capital structure of the Company.

     11. Corporate Reorganizations. Subject to the giving of notice pursuant to
         -------------------------
this Section, all options granted under the Plan shall terminate upon the
earlier of the occurrence of (a) the dissolution or liquidation of the Company;
(b) a reorganization, merger, or consolidation of the Company with one or more
corporations as a result of which, immediately following such reorganization,
merger or consolidation, the shareholders of the Company as a group will hold
less than a majority of the outstanding capital stock of the surviving
corporation, including such reorganizations, mergers or consolidations where the
Company will not be the surviving corporation; (c) the sale of all or
substantially all of the assets of the Company; or (d) upon the

                                      -5-
<PAGE>

occurrence of an event whereby any person or entity, including any "beneficial
owner" as defined or used in Section 13(d)(3) of the 1934 Act, acquires common
stock representing fifty percent (50%) or more of the combined voting power of
the voting securities of the Company (collectively the "Terminating Events" and
individually a "Terminating Event").

          The Company shall give notice to holders of options not less than
thirty (30) days prior to the consummation of a Terminating Event as defined in
this Section. Upon the date specified in such notice, subject to the discretion
of the Committee to accelerate the vesting of all non-vested options, the
vesting of all options under the Plan shall cease, all vested options shall
become immediately exercisable, all non-vested options shall immediately
terminate, and all such vested options which have not been exercised shall
terminate. Adjustments and determinations under this Section shall be made by
the Committee (upon the advice of counsel), whose decisions as to what
adjustments or determinations shall be made, and the extent thereof, shall be
final, binding, and conclusive.

     12. Termination of Options. To the extent not earlier exercised, an option
         ----------------------
shall terminate at the earliest of the following dates.

          12.1. The date of termination specified for such option in the
respective option agreement.

          12.2. One (1) year following the termination of the optionee's
employment with the Company by reason of the optionee's disability (within the
meaning of Section 22(e)(3) of the Code);

          12.3. Ninety (90) days after the date of termination of the optionee's
employment with the Company for any reason other than the optionee's death or
disability (as defined in Section 12.2 above) unless such termination is for
cause in which case the option shall immediately terminate;

          12.4. The date of any sale, transfer or hypothecation, or any
attempted sale, transfer or hypothecation of an option in violation of Section 5
above;

          12.5. Notwithstanding any other provisions set forth herein or in any
option agreement issued hereunder, if optionee shall (i) commit any act of
malfeasance or wrongdoing affecting the Company, (ii) breach any covenant not to
compete, or employment contract with Company, or (iii) engage in conduct that
would warrant optionee's discharge for cause (excluding general dissatisfaction
with the performance of optionee's duties, but including any act of disloyalty
or any conduct clearly tending to bring discredit upon Company), then any
unexercised portion of the options granted shall immediately terminate and be
void; or

          12.6. The date specified in Section 11 above for such termination in
the event of a Terminating Event.

                                      -6-
<PAGE>

     13. Restricted Stock; Right of Repurchase; Right of First Refusal.
         -------------------------------------------------------------

          13.1. The Company shall have the continuing right, but shall not be
required to repurchase (herein the "Right of Repurchase") from an optionee all
or part of the shares of the common stock acquired by the optionee (or his or
her guardian or Qualified Successor as the case may be) under options granted
hereunder. This Right of Repurchase shall be exercisable commencing on the later
of the date of termination of the optionee's employment, consulting agreement or
term as director for any reason whatsoever (including death or disability) and
shall be a continuing right. This Right of Repurchase shall be deemed exercised
upon delivery of written notice of such exercise to the optionee, specifying the
number of shares to be repurchased and the effective date of the repurchase (the
"Effective Repurchase Date"), which date shall not be earlier than the date of
the notice. With respect to each share to be repurchased, the repurchase price
shall be the fair market value of such share on the Effective Repurchase Date as
determined in good faith by the Committee. The purchase price shall, at the
Company's sole discretion, be paid on the effective Repurchase Date by either
(a) cash or (b) the Company's non-negotiable promissory note payable in twenty
(20) quarterly installments of principal, together with interest at the prime
rate published in the Money Rates section of the Wall Street Journal, or if that
is no longer published, the publicly announced prime rate at the Company's
primary bank.

          13.2. In addition to the Company's Right of Repurchase, in the event
that an optionee, or the guardian or Qualified Successor of an optionee
hereafter in this Section 13.2 (the "Transferor Shareholder") shall desire to
sell, gift, pledge, encumber or otherwise transfer (herein a "Disposition") all
or any portion of the shares of common stock to any person or entity other than
the Company, then such Transferor Shareholder shall be required, before
consummating such Disposition, to give the Company a written notice (herein the
"Disposition Notice") setting forth the purpose of the Disposition, any
consideration proposed to be received by the Transferor Shareholder, the
proposed manner and timing of payment of such consideration, the number of
shares of common stock or interest therein proposed to be transferred in the
Disposition (herein referred to as "Offered Shares"), and all other material
terms of the proposed Disposition.

               13.2.1. If the proposed Disposition is a transfer for
consideration, the Company shall have the right to purchase (herein the "Right
of First Refusal") all or any portion of the Offered Shares for the lowest of
the following amounts: (a) the fair market value of such Offered Shares as of
the date on which the Disposition Notice was received by the Company as
determined in good faith by the Committee; (b) the proposed dollar price
specified in the Disposition Notice; or (c) if no proposed dollar price is
specified in such notice because the proposed consideration is payable other
than in money, the fair market value of the consideration to be received in
return for the Offered Shares (such fair market value to be determined by the
Committee). If the proposed Disposition is a transfer for no consideration, the
Company shall have the right to purchase all the shares of common stock for the
fair market value determined by the Committee as provided above.

               13.2.2. If the Company elects to purchase all or any portion of
the Offered Shares under this Section 13.2, the Company shall give written
notice of its election to the Transferor Shareholder within sixty (60) days
following receipt by the Company of the Disposition Notice. Failure by the
Company to give notice of election to purchase all or any portion of the Offered

                                      -7-
<PAGE>

Shares within this sixty (60) day period shall terminate the Company's Right of
First Refusal and the Transferor Shareholder may then proceed, at any time
within one hundred twenty (120) days after receipt by the Company of the
Disposition Notice, to consummate the proposed Disposition of all or any portion
of the Offered Shares which the Company has not elected to purchase, but only
(a) after compliance with the requirements and restrictions of the option
agreement and Section 14.2 below and (b) on the precise terms specified in the
Disposition Notice (except that the Transferor Shareholder may obtain a higher
price, or payment terms more favorable to the Transferor Shareholder). If the
Disposition is not consummated with respect to all or any portion of the Offered
Shares within the one hundred twenty (120) days required by the immediately
preceding sentence, the Transferor Shareholder and all of the Offered Shares not
transferred in the Disposition shall again become subject to all of the terms
and conditions of the Company's Right of Repurchase and Right of First Refusal.

          13.3. In the event the Company exercises Right of First Refusal, such
repurchase or purchase shall be closed within thirty (30) days after the
Company's notice of such election. The purchase price shall, at the Company's
sole discretion, be paid at closing by (a) a total cash down payment equal to
the cash down payment offered in writing by a bona fide third party offeror for
the Offered Shares as specified in the Disposition Notice, with the balance of
such purchase price to be evidenced by and payable in installments pursuant to
promissory notes executed by the Company and containing the terms and conditions
offered by a bona fide third party offeror as specified in the Disposition
Notice, (b) cash at closing, or (c) the Company's non-negotiable promissory note
payable in twenty (20) quarterly installments of principal, together with
interest at the prime rate published in the Money Rates section of the Wall
Street Journal, or if that is no longer published, the publicly announced prime
rate at the Company's primary bank.

          13.4. In the event of any involuntary transfer or sale of any shares
of common stock or any interest therein by operation of law, or by legal process
or judicial procedure, including, without being limited to, any sale in
bankruptcy or insolvency proceedings, attachment or garnishment, or other
transfer or sale by court decree, such transfer or sale shall be deemed to be a
Disposition subject to the Company's Right of First Refusal as provided above,
and the Company shall have the right, within the time periods set forth in
Section 13.2.2 and 13.3 to purchase the transferred shares of common stock from
the transferee or purchaser thereof at the price, and upon the terms, prescribed
above in connection with the Right of First Refusal. For this purpose, the date
on which the Company was first notified in writing of the occurrence and terms
of such involuntary transfer or sale (which notice shall refer to the Company's
rights under this Section) shall be deemed to be the date of the Disposition
Notice, and the value given (whether by way of new consideration, extinguishment
of debt, release of liabilities, or otherwise) by the transferee or purchaser
shall be deemed to be the price specified in the Disposition Notice.

          13.5. The Committee shall, in good faith, determine the fair market
value of the shares to be repurchased as of the Effective Repurchase Date (under
Section 13.1) or the date on which the Disposition Notice was received by the
Company (under Section 13.2). If the optionee (or his or her guardian or
Qualified Successor) disagrees with the determination by the Committee of fair
market value, within twenty (20) days of receipt of the written notice of
election under Section 13.1 above or the written notice of election under
Section 13.2 above, the optionee shall give written notice of such disagreement
to the Committee, and the Committee and the optionee (or his or her guardian or
Qualified Successor) shall mutually appoint an independent third party appraiser
who

                                      -8-
<PAGE>

shall determine the fair market value of the shares to be purchased or
repurchased and such determination shall then be deemed to be the fair market
value of such shares. The appraiser shall complete his or her appraisal within
thirty (30) days from the date of appointment. If the Company and the optionee
(or his or her guardian or Qualified Successor) are unable to agree upon the
appointment of an appraiser within twenty (20) days of the date such written
notice of disagreement was given, the appraiser shall be appointed by any judge
of any court having jurisdiction over the parties upon the written request of
either party notice of such request being given to the other party. If the
appraised fair market value of the shares of stock to be purchased or
repurchased exceeds the fair market value of such stock as determined by the
Committee by more than ten percent (10%), the cost of the appraisal shall be
borne by the Company; in all other cases the cost of the appraisal shall be
borne by the optionee (or his or her guardian). If an independent third party
appraiser must be appointed, the time periods described in this Section for the
fulfillment, exercise and expiration of the various obligations, rights and
options of the Company, the optionee (or his or her Guardian or Qualified
Successor) and the Transferor Shareholder shall be deemed tolled during the
period commencing with the Company's receipt of the written notice of
disagreement (as described above) and ending with the delivery of the
appraiser's signed, written report of such fair market value to the Company and
the optionee (or his or her Guardian).

          13.6. The right of the Company to purchase any part of the common
stock may be assigned in whole or in part to one or more employees, officers,
directors, consultants or shareholders of the Company or other persons or
organizations.

          13.7. All transferees of common stock or any interest therein shall be
required, as a condition of such transfer, to agree in writing in a form
satisfactory to the Company that they will receive and hold the common stock or
interests subject to the provisions of this Section, including but not limited
to the Company's continuing right to repurchase. Any sale or transfer of the
common stock shall be void unless the provisions of this Section are satisfied.

          13.8. The right of first refusal or right of repurchase granted to the
Company by this Plan shall terminate at such time as a public market exists for
the Company's common stock. Upon termination of the right of first refusal, at
the optionee's request the Company shall issue to optionee a new certificate
representing the common stock without a legend referring to such refusal right.
For the purpose of this paragraph, a "public market" shall be deemed to exist if
(i) the common stock is listed on a national securities exchange (as that term
is used in the 1934 Act) or (ii) the common stock is traded on the
over-the-counter market and prices are published daily on business days in a
recognized financial journal.

          13.9. The right of first refusal contained in this Plan shall not
apply to a voluntary transfer to optionee's ancestors or descendants or spouse
or to a trustee for their benefit; provided that such transferee shall agree in
writing, in form satisfactory to the Company, to take such common stock subject
to all of the terms of the Company's right of repurchase and right of first
refusal on further transfers.

          The restrictions imposed under this Section 13 shall apply as well to
all shares of other securities issued in respect of restricted stock in
connection with any stock split, reverse stock split, stock dividend,
recapitalization, reclassification, spin-off, split-off, merger, consolidation
or

                                      -9-
<PAGE>

reorganization, but such restrictions shall expire or terminate at such time or
times as shall be specified herein or in the instrument evidencing the option
which provides for the restrictions.

     14. Conditions Upon Issuance of Shares.
         ----------------------------------

          14.1. Shares shall not be issued pursuant to the exercise of any
option unless the exercise of such option and the issuance and delivery of the
shares pursuant thereto shall comply with all relevant provisions of law,
including, without limitation, the Securities Act of 1933, as amended (the "1933
Act"), the 1934 Act, all applicable state securities law, and the rules and
regulations promulgated thereunder, and the requirements of any stock exchange
or automatic quotation system upon which the shares may then be listed or
otherwise traded, and such compliance has been confirmed by counsel for the
Company.

          14.2. Each option granted hereunder shall be evidenced by a written
agreement executed by the Company and the optionee. Such agreement shall contain
the terms of the option as specified herein, together with such other terms,
conditions, and provisions as the Committee deems advisable. At the discretion
of the Committee, the agreement may also provide that, by accepting the option
granted under this Plan, the optionee, for himself or herself, for his or her
Guardian, and for his or her heirs, successors and assigns:

               14.2.1. Recognizes, agrees and acknowledges that no registration
statement under the 1933 Act or under any state securities law has been filed as
to either the option or the shares of common stock purchased upon any exercise
of such option; and that any and all such shares shall be acquired for
investment and not for resale or distribution;

               14.2.2. Agrees that the shares of common stock may not be sold or
transferred unless there is either (a) an effective registration statement under
the 1933 Act and compliance with governing state securities law, or (b) an
opinion of counsel satisfactory to the Company that the sale or transfer is
exempt from registration under the 1933 Act and governing state laws;

               14.2.3. Acknowledges and consents to the appearance of a printed
legend on each stock certificate issued with respect to options granted under
this Plan which shall read, in substance, as follows:

                        NOTICE: RESTRICTIONS ON TRANSFER
          The securities represented by this certificate have not been
          registered under the Securities Act of 1933, as amended, or any state
          securities laws (collectively the "Acts"), have been acquired for
          investment only and may not be offered, sold, transferred, encumbered
          or otherwise disposed of unless there is (A) either (i) an effective
          registration statement under the Acts and compliance therewith, or
          (ii) an opinion of counsel (provided at Stockholder expense)
          satisfactory to the corporation that the sale or transfer is exempt
          from registration under the Acts and (B) satisfaction of certain
          conditions set forth in a written agreement between the corporation
          and the record holder hereof and/or in the RDA CONSULTANTS LIMITED
          Stock Option Plan. Information concerning these restrictions may be
          obtained from the corporation or its legal counsel. Any offer or
          disposition of these securities without satisfaction of such
          conditions will be wrongful and will not entitle the transferee to
          register ownership of the securities with the corporation. These
          securities may also be

                                      -10-
<PAGE>

          subject to a right of first refusal and to repurchase by the
          corporation upon certain terms and conditions set forth in said
          documents.

               14.2.4. Agrees that, in the event of a claim against the Company
resulting from a breach of the representations or the terms and conditions
contained in such agreement, the optionee will indemnify and hold the Company
harmless from any loss or damage, including attorney's fees or other legal
expenses, incurred in the defense or payment of any such claims against the
Company.

          14.3. The Company's inability to obtain authority from any regulatory
body having jurisdiction over the issuance and delivery of the shares pursuant
to the exercise of options, which authority is deemed by the Company's counsel
to be necessary to the lawful issuance and sale of any shares of common stock
hereunder, shall relieve the Company of any liability with respect to the
failure to issue or sell such shares.

     15. Financial Assistance. The Company is vested with discretionary
         --------------------
authority under this Plan to assist any employee to whom an option is granted
hereunder (including any director or officer of the Company or any of its
subsidiaries who is also an employee) in the payment of the purchase price
payable on exercise of that option, by lending the amount of such purchase price
to such employee on such terms and at such rates of interest and upon such
security (or unsecured) as shall have been authorized by or under authority of
the Board.

     16. Conversion of ISOs into Non-ISOs.
         --------------------------------

         At the written request of any ISO optionee, the Committee, in its
discretion, may take any actions as may be necessary to convert such optionee's
ISO (or any installments or portions of installments thereof) that have not been
exercised on the date of conversion into Non-ISOs at any time prior to the
expiration of such ISOs, regardless of whether the optionee is an officer,
employee, director, agent, consultant or independent contractor of the Company
or of any Affiliate of the Company at the time of such conversion. Subject to
the limitations set forth in this Plan, such actions may include, without
limitation, extending the exercise period or reducing the exercise price of the
appropriate installments of such ISOs. At the time of such conversion, the
Committee, with the consent of the optionee, may impose such conditions on the
exercise of the resulting Non-ISOs, and no such conversion shall occur until and
unless the Committee takes appropriate action. The Committee, with the consent
of the optionee, may also terminate any portion of any ISO that has not been
exercised at the time of such conversion.

     17. Amendment and Termination. The Board may alter, amend, suspend or
         -------------------------
terminate this Plan, provided that no such action shall deprive an optionee,
without his consent, of any option granted to the optionee pursuant to this Plan
or of any of his rights under such option. Except as herein provided, no such
action of the Board, unless taken with the approval of the shareholders of the
Company, may:

          (a) increase the maximum number of shares for which options granted
              under this Plan may be exercised;

          (b) reduce the minimum permissible exercise price;

                                      -11-
<PAGE>

          (c) extend the ten-year duration of this Plan set forth herein; or

          (d) alter the class of employees eligible to receive options under the
              Plan.

                                      -12-

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