Document:

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                                                                   EXHIBIT 10.51

                             SCG HOLDING CORPORATION
                            2000 STOCK INCENTIVE PLAN
                      NON-QUALIFIED STOCK OPTION AGREEMENT
                                  FOR DIRECTORS

         This Option Agreement is made and entered into by and between SCG
HOLDING CORPORATION ("Company") and DAVID M. STANTON ("Optionee"), as of the
12th day of May, 2000 ("Date of Grant").

                                    RECITALS

         A. The Board of Directors of the Company has adopted the SCG Holding
Corporation 2000 Stock Incentive Plan ("Plan") as an incentive to retain members
of the Board of Directors, key employees, officers, and consultants of the
Company and to enhance the ability of the Company to attract such individuals
whose services are considered unusually valuable by providing an opportunity for
them to have a proprietary interest in the success of the Company.

         B. The Board has approved the granting of options to the Optionee
pursuant to the Plan to provide an incentive to the Optionee to focus on the
long-term growth of the Company.

         In consideration of the mutual covenants and conditions hereinafter set
forth and for other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, the Company and the Optionee agree as follows:

                  1. GRANT OF OPTION. The Company hereby grants to the Optionee
the right and option (hereinafter referred to as the "Option") to purchase an
aggregate of 7,017 shares (such number being subject to adjustment as provided
in paragraph 11 hereof and Section 14 of the Plan) of the Common Stock of the
Company (the "Stock") on the terms and conditions herein set forth. This Option
may be exercised in whole or in part and from time to time as hereinafter
provided. The Option granted under this Agreement is NOT intended to be an
"incentive stock option" as set forth in Section 422 of the Internal Revenue
Code of 1986, as amended.

                  2. VESTING OF OPTION. The Option shall vest and become
exercisable in accordance with the schedule below:

       -        33 1/3% of the Option grant shall become exercisable
                on May 12, 2001;

       -        an additional 33 1/3% of the Option grant shall
                become exercisable on May 12, 2002; and

       -        the final 33 1/3% of the Option grant shall become
                exercisable on May 12, 2003.

                  3. PURCHASE PRICE. The price at which the Optionee shall be
entitled to purchase the Stock covered by the Option shall be $21.375 per share.
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                  4. TERM OF OPTION. The Option granted under this Agreement
shall expire, unless otherwise exercised, ten years from the Date of Grant,
through and including the normal close of business of the Company on May 12,
2010 ("Expiration Date"), subject to earlier termination as provided in
paragraph 8 hereof.

                  5. EXERCISE OF OPTION. The Option may be exercised by the
Optionee as to all or any part of the Stock then vested by delivery to the
Company of written notice of exercise and payment of the purchase price as
provided in paragraphs 6 and 7 hereof.

                  6. METHOD OF EXERCISING OPTION. Subject to the terms and
conditions of this Option Agreement, the Option may be exercised by timely
delivery to the Company of written notice, which notice shall be effective on
the date received by the Company ("Effective Date"). The notice shall state the
Optionee's election to exercise the Option, the number of shares in respect of
which an election to exercise has been made, the method of payment elected (see
paragraph 7 hereof), the exact name or names in which the shares will be
registered and the Social Security number of the Optionee. Such notice shall be
signed by the Optionee and shall be accompanied by payment of the purchase price
of such shares. In the event the Option shall be exercised by a person or
persons other than Optionee pursuant to paragraph 8 hereof, such notice shall be
signed by such other person or persons and shall be accompanied by proof
acceptable to the Company of the legal right of such person or persons to
exercise the Option. All shares delivered by the Company upon exercise of the
Option shall be fully paid and nonassessable upon delivery.

                  7. METHOD OF PAYMENT FOR OPTIONS. Payment for shares purchased
upon the exercise of the Option shall be made by the Optionee in cash,
previously-acquired Stock held for more than six months (through actual tender
or by attestation), broker-assisted cashless exercise arrangement, or such other
method permitted by the Board and communicated to the Optionee in writing prior
to the date the Optionee exercises all or any portion of the Option.

                  8. TERMINATION OF SERVICES.

                           8.1 GENERAL. If the Optionee ceases to perform
services as a member of the Board of Directors of the Company for any reason
other than death or Disability, then the Optionee may at any time within ninety
(90) days after the effective date of termination of services exercise the
Option to the extent that the Optionee was entitled to exercise the Option at
the date of termination, provided that the Option shall lapse immediately upon a
termination for Cause. In no event shall the Option be exercisable after the
Expiration Date. Any portion of the Option that is not vested on the date the
Optionee ceases to perform services as a Company Director, shall be forfeited on
such date.

                           8.2 DEATH OR DISABILITY OF OPTIONEE. In the event of
the death or Disability (as that term is defined in the Plan) of the Optionee
within a period during which the Option, or any part thereof, could have been
exercised by the Optionee, including ninety (90) days after termination of
services (the "Option Period"), the Option shall lapse unless it is exercised
within the Option Period and in no event later than twelve (12) months after the
date of the Optionee's death or Disability by the Optionee or the Optionee's
legal representative or representatives in the case of a Disability or, in the
case of death, by the person or persons

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entitled to do so under the Optionee's last will and testament or if the
Optionee fails to make a testamentary disposition of such Option or shall die
intestate, by the person or persons entitled to receive such Option under the
applicable laws of descent and distribution. An Option may be exercised
following the death or Disability of the Optionee only if the Option was
exercisable by the Optionee immediately prior to his death or Disability. In no
event shall the Option be exercisable after the Expiration Date. The Board shall
have the right to require evidence satisfactory to it of the rights of any
person or persons seeking to exercise the Option under this paragraph 8 to
exercise the Option.

                  9. NONTRANSFERABILITY. The Option granted by this Option
Agreement shall be exercisable only during the term of the Option provided in
paragraph 4 hereof and, except as provided in paragraph 8 above, only by the
Optionee during his lifetime and while a Director of the Company. Except as
otherwise permitted by the Committee, this Option shall not be transferable by
the Optionee or any other person claiming through the Optionee, either
voluntarily or involuntarily, except by will or the laws of descent and
distribution.

                  10. MARKET STAND-OFF AGREEMENT. The Optionee, if requested by
the Company and an underwriter of Stock (or other securities) of the Company,
agrees not to sell or otherwise transfer or dispose of any Stock (or other
securities) of the Company held by the Optionee during the period not to exceed
180 days as requested by the managing underwriter following the effective date
of a registration statement of the Company filed under the Securities Act. Such
agreement shall be in writing in a form satisfactory to the Company and such
underwriter. The Company may impose stop transfer instructions with respect to
the Stock (or other securities) subject to the foregoing restriction until the
end of such project.

                  11. ADJUSTMENTS IN NUMBER OF SHARES AND OPTION PRICE. In the
event of a stock dividend or in the event the Stock shall be changed into or
exchanged for a different number or class of shares of stock of the Company or
of another corporation, whether through reorganization, recapitalization, stock
split-up, combination of shares, merger or consolidation, there shall be
substituted for each such remaining share of Stock then subject to this Option
the number and class of shares of stock into which each outstanding share of
Stock shall be so exchanged, all without any change in the aggregate purchase
price for the shares then subject to the Option, all as set forth in Section 14
of the Plan.

                  12. DELIVERY OF SHARES. No shares of Stock shall be delivered
upon exercise of the Option until (i) the purchase price shall have been paid in
full in the manner herein provided; (ii) applicable taxes required to be
withheld have been paid or withheld in full; (iii) approval of any governmental
authority required in connection with the Option, or the issuance of shares
thereunder, has been received by the Company; and (iv) if required by the Board,
the Optionee has delivered to the Board an Investment Letter in form and content
satisfactory to the Company as provided in paragraph 13 hereof.

                  13. SECURITIES ACT. The Company shall not be required to
deliver any shares of Stock pursuant to the exercise of all or any part of the
Option if, in the opinion of counsel for the Company, such issuance would
violate the Securities Act of 1933 or any other applicable federal or state
securities laws or regulations. The Board may require that the Optionee, prior
to the issuance of any such shares pursuant to exercise of the Option, sign and
deliver to the

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Company a written statement ("Investment Letter") stating (i) that the Optionee
is purchasing the shares for investment and not with a view to the sale or
distribution thereof; (ii) that the Optionee will not sell any shares received
upon exercise of the Option or any other shares of the Company that the Optionee
may then own or thereafter acquire except either (a) through a broker on a
national securities exchange or (b) with the prior written approval of the
Company; and (iii) containing such other terms and conditions as counsel for the
Company may reasonably require to assure compliance with the Securities Act of
1933 or other applicable federal or state securities laws and regulations. Such
Investment Letter shall be in form and content acceptable to the Board in its
sole discretion.

                  14. DEFINITIONS; COPY OF PLAN. To the extent not specifically
provided herein, all capitalized terms used in this Option Agreement shall have
the same meanings ascribed to them in the Plan. By the execution of this
Agreement, the Optionee acknowledges receipt of a copy of the Plan.

                  15. ADMINISTRATION. This Option Agreement shall at all times
be subject to the terms and conditions of the Plan and the Plan shall in all
respects be administered by the Board in accordance with the terms of and as
provided in the Plan. The Board shall have the sole and complete discretion with
respect to all matters reserved to it by the Plan and decisions of the majority
of the Board with respect thereto and to this Option Agreement shall be final
and binding upon the Optionee and the Company. In the event of any conflict
between the terms and conditions of this Option Agreement and the Plan, the
provisions of the Plan shall control.

                  16. CONTINUATION OF SERVICES. This Option Agreement shall not
be construed to confer upon the Optionee any right to continue providing
services as a Company Director and shall not limit the right of the Company, in
its sole discretion, to terminate the services of the Optionee at any time.

                  17. OBLIGATION TO EXERCISE. The Optionee shall have no
obligation to exercise any option granted by this Agreement.

                  18. GOVERNING LAW. This Option Agreement shall be interpreted
and administered under the laws of the State of Delaware.

                  19. AMENDMENTS. This Option Agreement may be amended only by a
written agreement executed by the Company and the Optionee. The Company and the
Optionee acknowledge that changes in federal tax laws enacted subsequent to the
Date of Grant, and applicable to stock options, may provide for tax benefits to
the Company or the Optionee. In any such event, the Company and the Optionee
agree that this Option Agreement may be amended as necessary to secure for the
Company and the Optionee any benefits that may result from such legislation. Any
such amendment shall be made only upon the mutual consent of the parties, which
consent (of either party) may be withheld for any reason.

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         IN WITNESS WHEREOF, the Company has caused this Option Agreement to be
signed by its duly authorized representative and the Optionee has signed this
Option Agreement as of the date first written above.

SCG HOLDING CORPORATION                  OPTIONEE/DAVID M. STANTON

By: /s/ George H. Cave                   /s/ David M. Stanton
    -----------------                    --------------------
Its: Vice President & Secretary
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EXHIBIT (10)(i)

                                 SYNTELLECT INC.

                           RESTATED STOCK OPTION PLAN

                     (AS AMENDED THROUGH FEBRUARY 17, 1998)

         1. Purposes Of The Plan. The purposes of this Stock Option Plan are to
attract and retain the best available personnel for positions of responsibility
within the Company, to provide additional incentive to Employees of the Company,
and to promote the success of the Company's business through the grant of
options to purchase shares of the Company's Common Stock.

         Options granted hereunder may be either Incentive Stock or Nonstatutory
Stock Options, at the discretion of the Board. The type of options granted shall
be reflected in the terms of written Stock Option agreements.

         2. Definitions. As used herein, the following definitions shall apply:

                  (a) "Board" shall mean the Board of Directors of the Company
         or the Committee, if one has been appointed.

                  (b) "Code" shall mean the Internal Revenue Code of 1986, as
         amended, and the rules and regulations promulgated thereunder.

                  (c) "Common Stock" shall mean the common stock of the Company
         described in the Company's Certificate of Incorporation, as amended.

                  (d) "Company" shall mean SYNTELLECT INC., a Delaware
         corporation, and shall include any parent or subsidiary corporation of
         the Company as defined in Sections 425(e) and (f), respectively, of the
         Code.

                  (e) "Committee" shall mean the Committee appointed by the
         Board in accordance with paragraph (a) of Section 4 of the Plan, if one
         is appointed.

                  (f) "Employee" shall mean any person, including officers,
         directors, consultants and advisors, employed by the Company. The
         payment of a director's fee, by the Company shall not be sufficient to
         constitute "employment" by the Company.

                  (g) "Exchange Act" shall mean the Securities and Exchange Act
         of 1934 as amended.

                  (h) "Fair Market Value" shall mean, with respect to the date a
         given Option is granted or exercised, the value of the Common Stock
         determined by the Board in such

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         manner as it may deem equitable for Plan purposes but, in the case of
         an Incentive Stock Option, no less than is required by applicable laws
         or regulations; provided, however, that where there is a public market
         for the Common Stock, the Fair Market Value per Share shall be the mean
         of the bid and asked prices of the Common Stock on the date of grant,
         as reported in The Wall Street Journal (or, if not so reported, as
         otherwise reported by the National Association of Securities Dealers
         Automated Quotation System) or, in the event the Common Stock is listed
         on the New York Stock Exchange, the American Stock Exchange or the
         NASDAQ/National Market System, the Fair Market Value per Share shall be
         the closing price on such exchange on the date of grant of the Option,
         as reported in The Wall Street Journal.

                  (i) "Incentive Stock Option" shall mean an Option which is
         intended to qualify as an incentive stock option within the meaning of
         Section 422 of the Code.

                  (j) "Option" shall mean a stock option granted under the Plan.

                  (k) "Optioned Stock" shall mean the Common Stock subject to an
         Option.

                  (l) "Optionee" shall mean an Employee of the Company who has
         been granted one or more Options.

                  (m) "Nonstatutory Stock Option" shall mean an Option which is
         not an Incentive Stock Option.

                  (n) "Parent" shall mean a "parent corporation," whether now or
         hereafter existing, as defined in Section 425(e) of the Code.

                  (o) "Plan" shall mean this Stock Option Plan.

                  (p) "Share" shall mean a share of the Common Stock, as
         adjusted in accordance with Section 11 of the Plan.

                  (q) "Stock Option Agreement" shall mean the written agreement
         between the Company and the Option relating to the grant of an Option.

                  (r) "Subsidiary" shall mean a "subsidiary corporation,"
         whether now or hereafter existing, as defined in Section 425(f) of the
         Code.

                  (s) "Tax date" shall mean the date an Optionee is required to
         pay the Company an amount with respect to tax withholding obligations
         in connection with the exercise of an option.

         3. Common Stock Subject To The Plan. Subject to the provisions of
Section 11 of the Plan, the maximum aggregate number of shares which may be
optioned and sold under the Plan is One Million Five Hundred Ninety Thousand
(1,590,000) Shares of Common Stock. The

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Shares may be authorized, but unissued, or previously issued Shares acquired by
the Company and held in treasury.

         If an Option should expire or become unexercisable for any reason
without having been exercised in full, the unpurchased Shares covered by such
Option shall, unless the Plan shall have been terminated, be available for
future grants of Options.

         4. Administration Of The Plan.

                  (a) Procedure.

                           (i) The Plan shall be administered by the Board or a
                  Committee appointed the Board to administer the Plan at any
                  time or from time to time. If the Company has a class of
                  equity securities registered under Section 12 of the Exchange
                  Act, the Plan shall be administered by the Board or a
                  Committee of the Board in accordance with Rule 16(b)-3 under
                  the Exchange Act.

                           (ii) Once appointed, 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 thereof, remove members (with or without
                  cause), appoint new members in substitution therefor, and fill
                  vacancies however caused; provided, however, that at no time
                  may any person serve on the Committee if the Company has a
                  class of equity securities registered under Section 12 of the
                  Exchange Act and that person's membership would cause the
                  Committee not to satisfy the "disinterested administration"
                  requirements of Rule 16b-3.

                  (b) Powers Of The Board. Subject to the provisions of the
         Plan, the Board shall have the authority, in its discretion: (i) to
         grant Incentive Stock Options and Nonstatutory Stock Options; (ii) to
         determine, upon review of relevant information and in accordance with
         Section 2 of the Plan, the Fair Market Value of the Common Stock; (iii)
         to determine the exercise price per Share of Options to be granted,
         which exercise price shall be determined in accordance with Section
         8(a) of the Plan; (iv) to determine the Employees to whom, and the time
         or times at which, Options shall be granted and the number of Shares to
         be represented by each Option; (v) to interpret the Plan; (vi) to
         prescribe, amend and rescind rules and regulations relating to the
         Plan; (vii) to determine the terms and provisions of each Option
         granted (which need not be identical) and, with the consent of the
         Optionee thereof, modify or amend each Option; (viii) to accelerate or
         defer (with the consent of the Optionee) the exercise date of any
         Option; (ix) to authorize any person to execute on behalf of the
         Company any instrument required to effectuate the grant of an Option
         previously granted by the Board; (x) to accept or reject the election
         made by an Optionee pursuant to Section 17 of the Plan; and (xi) to
         make all other determinations deemed necessary or advisable for the
         administration of the Plan.

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                  (c) Effect Of Board's Decision. All decisions, determinations
         and interpretations of the Board shall be final and binding on all
         Optionees and any other holders of any Options granted under the Plan.

         5. Eligibility.

                  (a) Consistent with the Plan's purposes, Options may be
         granted only to Employees of the Company as determined by the Board. An
         Employee who has been granted an Option may, if he is otherwise
         eligible, be granted an additional Option or Options; provided,
         however, no Employee may be granted Options to purchase more than
         795,000 Shares under the Plan. Incentive Stock Options may be granted
         only to those Employees who meet the requirements applicable under
         Section 422 of the Code.

                  (b) With respect to Incentive Stock Options granted on or
         before December 31, 1986, the aggregate Fair Market Value (determined
         as of the time the Incentive Stock Option is granted) of all stock of
         the Company for which such Employee may be granted Incentive Stock
         Options under this Plan or any plan maintained by the Company shall not
         exceed, in any calendar year, $100,000 plus any unused limit carryover
         for that year, as defined in Section 422A(c)(4) of the Code. With
         respect to Incentive Stock Options granted after December 31, 1986, the
         aggregate Fair Market Value (determined at the time the Incentive Stock
         Option is granted) of the Common Stock with respect to which Incentive
         Stock Options are exercisable for the first time by the employee during
         any calendar year (under all employee benefit plans of the Company)
         shall not exceed One Hundred Thousand Dollars ($100,000).

         6. Stockholder Approval And Effective Dates. The Plan became effective
upon approval of the Board. No Option may be granted under the Plan after
September 1, 2004; provided, however, that the Plan and all outstanding Options
shall remain in effect until such Options have expired or until such Options are
canceled.

         7. Term of Option. Unless otherwise provided in the Stock Option
Agreement, the term of each Option shall be six (6) years from the date of grant
thereof. In no case shall the term of any Option exceed ten (10) years from the
date of grant thereof. Notwithstanding the above, in the case of an Incentive
Stock Option granted to an Employee who, at the time the Incentive Stock Option
is granted, owns ten percent (10%) or more of the Common Stock as such amount is
calculated under Section 422(b)(6) of the Code ("Ten Percent Stockholder"), the
term of the Incentive Stock Option shall be five (5) years from the date of
grant thereof or such shorter time as may be provided in the Stock Option
Agreement.

         8. Exercise Price And Payment.

                  (a) Exercise Price. The per Share exercise price for the
         Shares to be issued pursuant to exercise of an Option shall be
         determined by the Board, but in the case of an Incentive Stock Option
         shall be no less than one hundred percent (100 %) of the Fair Market
         Value per share on the date of grant, an in the case of a Nonstatutory
         Stock Option shall be no less than fifty percent (50%) of the Fair
         Market Value per share on the

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         date of grant. Notwithstanding the foregoing, in the case of an
         Incentive Stock Option granted to an Employee who, at the time of the
         grant of such Incentive Stock Option, is a Ten Percent Stockholder, the
         per Share exercise price shall be no less than one hundred ten percent
         (110 %) of the Fair Market Value per Share on the date of grant.

                  (b) Payment. The price of an exercised Option and any taxes
         attributable to the delivery of Common Stock under the Plan, or portion
         thereof, shall be paid:

                           (i) In United States dollars in cash or by check,
                  bank draft or money order payable to the order of the Company;

                           (ii) At the discretion of the Board, through the
                  delivery of shares of Common Stock with an aggregate Fair
                  Market Value equal to the option price and withholding taxes,
                  if any;

                           (iii) At the election of the Optionee pursuant to
                  Section 17 and with the consent of the Board pursuant to
                  Section 4(b)(x), by the Company's retention of such number of
                  shares of Common Stock subject to the exercised Option which
                  have an aggregate Fair Market Value on the exercise date equal
                  to the Company's aggregate federal, state, local and foreign
                  tax withholding and FICA and FUTA obligations with respect to
                  income generated by the exercise of the Option by Optionee;

                           (iv) By a combination of (i), (ii) and (iii) above;
                  or

                           (v) In the manner provided in subsection (c) below.

                  The Board shall determine acceptable methods for tendering
         Common Stock as payment upon exercise of an Option and may impose such
         limitations and prohibitions on the use of Common Stock to exercise an
         Option as it deems appropriate.

                  (c) Financial Assistance To Optionees. The Board may assist
         Optionees in paying the exercise price of Options granted under this
         Plan in the following manner:

                           (i) The extension of a loan to the Optionee by the
                  Company;

                           (ii) Payment by the Optionee of the exercise price in
                  installments; or

                           (iii) A guaranty by the Company of a loan obtained by
                  the Optionee from a third party.

                  The terms of any loans, installment payments or guarantees,
         including the interest rate and terms of repayment, and collateral
         requirements, if any, shall be determined by the Board, in its sole
         discretion. Subject to applicable margin requirements, any loans,
         installment payments or guarantees authorized by the Board pursuant to
         the Plan may be

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         granted without security, but the maximum credit available shall not
         exceed the exercise price for the Shares for which the Option is to be
         exercised, plus any federal and state income tax liability incurred in
         connection with the exercise of the Option.

         9. Exercise Of Option.

                  (a) Procedure For Exercise: Rights As A Stockholder. Any
         Option granted hereunder shall be exercisable at such times and under
         such conditions as determined by the Board, including performance
         criteria with respect to the Company and/or the Optionee, and as shall
         be permissible under the terms of the Plan. Unless otherwise determined
         by the Board at the time of grant, an Option may be exercised in whole
         or in part. An Option may not be exercised for a fraction of a Share.

                  An Option shall be deemed to be exercised when written notice
         of such exercise has been given to the Company in accordance with the
         terms of the Option by the person entitled to exercise the Option and
         full payment for the Shares with respect to which the Option is
         exercised has been received by the Company. Full payment may, as
         authorized by the Board, consist of any consideration and method of
         payment allowable under Section 8(b) of the Plan. Until the issuance
         (as evidenced by the appropriate entry on the books of the Company or
         of a duly authorized transfer agent of the Company) of the stock
         certificate evidencing such Shares, no right to vote or receive
         dividends or any other rights as a stockholder shall exist with respect
         to the Optioned Stock, notwithstanding the exercise of the Option. No
         adjustment will be made for a dividend or other right for which the
         record date is prior to the date the stock certificate is issued,
         except as provided in Section 11 of the Plan.

                  With respect to Incentive Stock Options granted on or before
         December 31, 1986, no Optionee may exercise an Incentive Stock Option
         while there is outstanding any Incentive Stock Option which was granted
         to such Optionee before such other options was granted. For purposes
         hereof, any Incentive Stock Option shall be treated as outstanding
         until such Incentive Stock Option is exercised in full or expired by
         reason of lapse of time and notwithstanding the cancellation of any
         Incentive Stock Option prior to the original expiration date thereof.

                  Exercise of an Option in any manner shall result in a decrease
         in the number of Shares which thereafter may be available, both for
         purposes of the Plan and for sale under the Option, by the number of
         Shares as to which the Option is exercised.

                  (b) Termination Of Status As An Employee. Unless otherwise
         provided in the Stock Option Agreement (which may reduce but not
         increase the time period described below), if an Employee's employment
         by the Company is terminated, except if such termination occurs due to
         death or disability, then the Employee may, but only within ninety (90)
         days after the date he ceases to be an Employee of the Company,
         exercise his Option to the extent that he was entitled to exercise it
         at the date of such termination. To the extent that he was not entitled
         to exercise the Option at the date of such termination,

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         or if he does not exercise such Option (which he was entitled to
         exercise) within the time specified herein, the Option shall terminate.

                  (c) Disability. Unless otherwise provided in the Stock Option
         Agreement (which may reduce but not increase the time period described
         below), notwithstanding the provisions of Section 9(b) above, in the
         event an Employee is unable to continue his employment with the Company
         as a result of his permanent and total disability (as defined in
         Section 22(e)(3) of the Code), he may, but only within twelve (12)
         months from the date of termination, exercise his Option to the extent
         he was entitled to exercise it at the date of such termination. To the
         extent that he was not entitled to exercise the Option at the date of
         termination, or if he does not exercise such Option (which he was
         entitled to exercise) within the time specified herein, the Option
         shall terminate.

                  (d) Death. Unless otherwise provided in the Stock Option
         Agreement (which may reduce but not increase the time period described
         below), if an Employee dies during the term of the Option and is at the
         time of his death an Employee of the Company who shall have been in
         Continuous Status as an Employee since the date of grant of the Option,
         the Option may be exercised at any time within twelve (12) months
         following the date of death (or such other period of time as is
         determined by the Board) by the Employee's estate or by a person who
         acquired the right to exercise the Option by bequest or inheritance,
         but only to the extent that an Employee was entitled to exercise the
         Option on the date of death. To the extent that decedent was not
         entitled to exercise the Option on the date of death, or if the
         Employee's estate, or person who acquired the right to exercise the
         Option by bequest or inheritance, does not exercise such Option (which
         he was entitled to exercise) within the time specified herein, the
         Option shall terminate.

                  (e) Change of Control. A Change of Control shall cause every
         Option outstanding hereunder to become fully exercisable and allow each
         Optionee the right to exercise an Option prior to the occurrence of the
         event otherwise terminating the Option; Provided, however that in the
         event (A) the Company's Board of Directors approves a transaction to be
         accounted for as a "pooling-of-interests: and (B) the Company's
         independent accountants have advised the Company in writing that the
         amendment to this Paragraph 6 approved by the Board of Directors on
         February 17, 1998 precludes such accounting, then, without any further
         action, such amendment to Paragraph 6 shall be null and void, and
         Paragraph 6 shall remain in effect as existing prior to such amendment.
         For purposes of this Paragraph 6 (c), "Change of Control" means and
         includes each of the following:

                           (i) there shall be consummated any consolidation or
                  merger of the Company in which the Company is not the
                  continuing or surviving entity, or pursuant to which Common
                  Stock would be converted into cash, securities or other
                  property, other than a merger of the Company in which the
                  holders of the Company's Common Stock immediately prior to the
                  merger have the same proportionate ownership of beneficial
                  interest of common stock or other voting securities of the
                  surviving entity immediately after the merger;

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                           (ii) the stock holders of the Company shall approve
                  any plan or proposal for liquidation or dissolution of the
                  Company;

                           (iii) any person (as such term is used in Section 13
                  (d) and 14 (d)(2) of the Exchange Act), other than any
                  employee benefit plan of the Company or any subsidiary of the
                  Company or any entity holding shares of capital stock of the
                  Company for or pursuant to the terms of any such employee
                  benefit plan in its role as an agent or trustee for such plan,
                  shall become the beneficial owner (within the meaning of Rule
                  13d-3 under the Exchange Act) of 25% or more of the Company's
                  outstanding Common Stock; or

                           (iv) during any period of two consecutive years,
                  individuals who were directors of the Company at the beginning
                  of such period shall fail to constitute a majority thereof,
                  unless the election, or the nomination for election by the
                  Company's stockholders, of each new director was approved by a
                  vote of at least two-thirds of the directors then still in
                  office who were directors at the beginning of the period.

         10. Non-Transferability Of Options. An Option may not be sold, pledged,
assigned, hypothecated, transferred or disposed of in any manner other than by
will or by the laws of descent or distribution, or pursuant to a "qualified
domestic relations order" under the Code and ERISA, and may be exercised, during
the lifetime of the Optionee, only by the Optionee.

         11. Adjustments Upon Changes In Capitalization Or Merger. Subject to
any required action by the stockholders of the Company, the number of shares of
Common Stock covered by each outstanding Option, and the number of shares of
Common Stock which have been authorized for issuance under the Plan but as to
which no Options have yet been granted or which have been returned to the Plan
upon cancellation or expiration of an Option, as well as the price per share of
Common Stock covered by each such outstanding Option, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common
Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock, or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration." Such adjustment shall be made by the Board,
whose determination in that respect shall be final, binding and conclusive.
Except as expressly provided herein, no issuance by the Company of shares of
stock of any class, or securities convertible into shares of stock of any class,
shall affect, and no adjustment by reason thereof, shall be made with respect to
the number or price of shares of Common Stock subject to an Option.

         In the event of the proposed dissolution or liquidation of the Company,
the Option will terminate immediately prior to the consummation of such proposed
action, unless otherwise provided by the Board. The Board may, in the exercise
of As sole discretion in such instances, declare that any Option shall terminate
as of a date fixed by the Board and give each Optionee

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<PAGE>   9
the right to exercise his Option as to all or any part of the Optioned Stock,
including Shares as to which the Option would not otherwise be exercisable. In
the event of a proposed sale of all or substantially all of the assets of the
Company, or the merger of the Company with or into another corporation, the
Option shall be assumed or an equivalent option shall be substituted by such
successor corporation or a parent or subsidiary of such successor corporation.
If the Board makes an Option fully exercisable in lieu of assumption or
substitution in the event of a merger or sale of assets, the Board shall notify
the Optionee that the Option shall be fully exercisable for a period of sixty
(60) days froth the date of such notice (but not later than the expiration of
the term of the Option under the Option Agreement), and the Option will
terminate upon the expiration of such period.

         12. Time Of Granting Options. The due of grant of an Option shall, for
all purposes, be the date on which the Board makes the determination granting
such Option. Notice of the determination shall be given to each Employee to whom
an Option is so granted within a reasonable time after the date of such grant.

         13. Amendment and Termination Of The Plan.

                  (a) Amendment And Termination. The Board may amend or
         terminate the Plan from time to time in such respects as the Board may
         deem advisable; provided, however, that the following revisions or
         amendments shall require approval of the Stockholders of the Company,
         to the extent required by law, rule or regulation:

                           (i) Any material increase in the number of Shares
                  subject to the Plan, other than in connection with an
                  adjustment under Section 11 of the Plan;

                           (ii) Any material change in the designation of the
                  Employees eligible to be granted Options; or

                           (iii) Any material increase in the benefits accruing
                  to participants under the Plan.

                  (b) Effect Of Amendment Or Termination. Any such amendment or
         termination of the Plan shall not affect Options already granted and
         such Options shall remain in full force and effect as if this Plan had
         not been amended or terminated, unless mutually agreed otherwise
         between the Optionee and the Board, which agreement must be in writing
         and signed by the Optionee and the Company.

         14. Conditions Upon Issuance Of Shares. Shares shall not be issued
pursuant to the exercise of an Option unless the exercise of such Option and the
issuance and delivery of such Shares pursuant thereto shall comply with all
relevant provisions of law, including, without limitation, the Securities Act of
1933, as amended, the Exchange Act, the rules and regulations promulgated
thereunder, and the requirements of any stock exchange upon which the Shares may
then be listed, and shall be further subject to the approval of counsel for the
Company with respect to such compliance.

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<PAGE>   10
         As a condition to the exercise of an Option, the Company may require
the person exercising such Option to represent and warrant at the time of any
such exercise that the Shares are being purchased only for investment and
without any present intention to sell or distribute such Shares if, in the
opinion of counsel for the Company, such a representation is required by any of
the aforementioned relevant provisions of law.

         Inability of the Company to obtain authority from any regulatory body
having jurisdiction, which authority is deemed by the Company's counsel to be
necessary to the lawful issuance and sale of any Shares hereunder, shall relieve
the Company of any liability in respect of the failure to issue or sell such
Shares as to which such requisite authority shall not have been obtained.

         In the case of an Incentive Stock Option, any Optionee who disposes of
Shares of Common Stock acquired upon the exercise of an Option by sale or
exchange (a) either within two (2) years after the date of the grant of the
Option under which the Common Stock was acquired or (b) within one (1) year
after the acquisition of such Shares of Common Stock shall notify the Company of
such disposition and of the amount realized upon such disposition.

         15. Reservation Of Shares. The Company will at all times reserve and
keep available such number of Shares as shall be sufficient to satisfy the
requirements of the Plan.

         16. Option Agreement. Options shall be evidenced by Stock Option
Agreements in such form as the Board shall approve.

         17. Withholding Taxes. Subject to Section 4(b)(x) of the Plan and prior
to the Tax Date, the Optionee may make an irrevocable election to have the
Company withhold from those Shares that would otherwise be received upon the
exercise of any Option, a number of Shares having a Fair Market Value equal to
the minimum amount necessary to satisfy the Company's federal, state, local and
foreign tax withholding obligations and FICA and FUTA obligations with respect
to the exercise of such Option by the Optionee.

         An Optionee who is also an officer of the Company must make the above
described election:

                  (a) at lease six months after the date of grant of the Option
         (except in the event of death of disability); and

                  (b) either:

                           (i) six months prior to the Tax Date, or

                           (ii) prior to the Tax Date and during the period
                  beginning on the third business day following the date the
                  Company releases its quarterly or annual statement of sales
                  and earnings and ending on the twelfth business day following
                  such date.

                                       64
<PAGE>   11
         18. Miscellaneous Provisions.

                  (a) Plan Expense. Any expenses of administering this Plan
         shall be borne by the Company.

                  (b) Use Of Exercise Proceeds. The payment received from
         Optionees from the exercise of Options shall be used for the general
         corporate purposes of the Company.

                  (c) Construction Of Plan. The place of administration of the
         Plan shall be in the State of Arizona, and the validity, construction,
         interpretation, administration and effect of the Plan and of its rules
         and regulations, and rights relating to the Plan, shall be determined
         in accordance with the laws of the State of Arizona without regard to
         conflict of law principles and, where applicable, in accordance with
         the Code.

                  (d) Taxes. The Company shall be entitled if necessary or
         desirable to pay or withhold the amount of any tax attributable to the
         delivery of Common Stock under the Plan from other amounts payable to
         the Employee after giving the person entitled to receive such Common
         Stock notice as far in advance as practical, and the Company may defer
         making delivery of such Common Stock if any such tax may be pending
         unless and until indemnified to its satisfaction.

                  (e) Indemnification. In addition to such other rights of
         indemnification as they may have as members of the Board, the members
         of the Board shall be indemnified by the Company against all costs and
         expenses reasonably incurred by them in connection with any action,
         suit or proceeding to which they or any of them may be party by reason
         of any action taken or failure to act under or in connection with the
         Plan or any Option, and against all amounts paid by them in settlement
         thereof (provided such settlement is approved by independent legal
         counsel selected by the Company) or paid by them in satisfaction of a
         judgment in any such action, suit or proceeding, except a judgment
         based upon a finding of bad faith; provided that upon the institution
         of any such action, suit or proceeding a Board member shall, in
         writing, give the Company notice thereof and an opportunity, at its own
         expense, to handle and defend the same before such Board member
         undertakes to handle and defend it on her or his own behalf.

                  (f) Gender. For purposes of this Plan, words used in the
         masculine gender shall include the feminine and neuter, and the
         singular shall include the plural and vice versa, as appropriate.

                  (g) No Employment Agreement. The Plan shall not confer upon
         any Optionee any right with respect to continuation of employment with
         the Company, nor shall it interfere in any way with his rights or the
         Company's rights to terminate his employment at any time.

                                       65

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