EXHIBIT 10(t)


                      NONQUALIFIED STOCK OPTION AGREEMENT
                      UNDER THE 1996 ACNIELSEN CORPORATION
                  NON-EMPLOYEE DIRECTORS' STOCK INCENTIVE PLAN


This nonqualified  stock option agreement (the "Award  Agreement")  confirms the
nonqualified stock option award (the "Award") made as of  ______________,  under
the 1996 ACNielsen Corporation Non-Employee Directors' Stock Incentive Plan (the
"Plan") to

                     [Name of Director] (the "Participant")

of  nonqualified  stock options  ("Options") to purchase the number of shares of
common  stock,  par  value  $0.01  per  share,  of  ACNielsen  Corporation  (the
"Company"),  prior to the  expiration  date(s)  and at the Option  price(s)  per
share, all as set forth below.

The Options are not intended to be incentive stock options within the meaning of
Section 422 of the Internal Revenue Code of 1986, as amended (the "Code"). These
Options may be exercised in whole or in part, from time to time, on or after the
date(s)  indicated  below with  respect to (i) those  number of shares set forth
opposite such date(s),  plus (ii) those number of shares as to which the Options
could have been exercised earlier but were not so exercised.


     Price             Vesting          Number of            Expiration
   Per Share            Date             Shares                 Date
  -----------         ---------        -----------          ------------




Notwithstanding  anything  to the  contrary  in this Award  Agreement,  upon the
acquisition  of 80% or more of all  outstanding  shares of Company  common stock
pursuant  to any tender or  exchange  offer for shares of Company  common  stock
(other  than one made by the  Company),  whether  the  Company  does or does not
support  the  offer,   then  all  unvested   Options  will  become   immediately
exercisable.  A tender or exchange  offer filed with the Securities and Exchange
Commission on Form 14D-1 (or successor  form) will be treated  conclusively as a
tender or exchange offer for purposes of this Agreement.


The  Options are issued in  accordance  with and are subject to the terms of the
Plan, which Plan is incorporated  herein by reference,  and are exercisable only
in accordance with the terms of this Award Agreement and the Plan. In accordance
with the terms of the Plan,  except as waived by the  Compensation  Committee of
the Board of  Directors  of the  Company,  these  Options  are not  transferable
otherwise  than  by  will  or the  laws  of  descent  and  distribution  and are
exercisable during the lifetime of the Participant only by the Participant.


IN WITNESS WHEREOF,  ACNielsen Corporation has caused this Award Agreement to be
executed in duplicate by its officer thereunto duly authorized.


                                         ACNIELSEN CORPORATION




                                         By__________________________

                                           Name:
                                          Title:


The undersigned hereby accepts and agrees to all the terms and provisions of the
foregoing Award Agreement and acknowledges receipt of a copy of the Plan.




--------------                                     ---------------------------
Date                                               Participant