Your network contains an Active Directory domain named contoso.com.
All user accounts reside in an organizational unit (OU) named OU1. All of the users in the marketing
department are members of a group named Marketing. All of the users in the human resources
department are members of a group named HR.
You create a Group Policy object (GPO) named GPO1. You link GPO1 to OU1. You configure the
Group Policy preferences of GPO1 to add two shortcuts named Link1 and Link2 to the desktop of
each user.
You need to ensure that Link1 only appears on the desktop of the users in Marketing and that Link2
only appears on the desktop of the users in HR.
What should you configure?

A.
Security Filtering

B.
WMI Filtering

C.
Group Policy Inheritance

D.
Item-level targeting

Explanation:
You can use item-level targeting to change the scope of individual preference items, so they apply
only to selected users or computers. Within a single Group Policy object (GPO), you can include
multiple preference items, each customized for selected users or computers and each targeted to
apply settings only to the relevant users or computers.

http://technet.microsoft.com/en-us/library/cc733022.aspx