Your network contains an Active Directory domain named contoso.com.
All user accounts for the marketing department reside in an organizational unit (OU) named OU1. All user
accounts for the finance department reside in an organizational unit (OU) named OU2.
You create a Group Policy object (GPO) named GPO1. You link GPO1 to OU2. You configure the Group Policy
preference of GPO1 to add a shortcut named Link1 to the desktop.
You discover that when a user signs in, the Link1 is not added to the desktop.
You need to ensure that when a user signs in, Link1 is added to the desktop.
What should you do?

A.
Enforce GPO1.

B.
Enable loopback processing in GPO1.

C.
Modify the Link1 shortcut preference of GPO1.

D.
Modify the Security Filtering settings of GPO1.

Explanation:
Security filtering is a way of refining which users and computers will receive and apply the settings in a Group
Policy object (GPO). Using security filtering, you can specify that only certain security principals within a
container where the GPO is linked apply the GPO. Security group filtering determines whether the GPO as a
whole applies to groups, users, or computers; it cannot be used selectively on different settings within a GPO.