Your network contains an Active Directory domain named contoso.com. You open Group Policy
Management as shown in the exhibit:

You discover that some of the settings configured in the A1 Group Policy object (GPO) fail to apply
to the users in the OU1 organizational unit (OU). You need to ensure that all of the settings in A1
apply to the users in OU1. What should you do?

A.
Enable loopback policy processing in A1.

B.
Block inheritance on OU1.

C.
Modify the policy processing order for OU1.

D.
Modify the GPO Status of A1.