Your network contains an Active Directory forest named contoso.com. The forest contains three domains
named contoso.com, corp.contoso.com, and ext.contoso.com. The forest contains three Active Directory sites
named Site1, Site2, and Site3.
You have the three administrators as described in the following table.

You create a Group Policy object (GPO) named GPO1.
Which administrator or administrators can link GPO1 to Site2?

A.
Admin1 and Admin2 only

B.
Admin1, Admin2, and Admin3

C.
Admin3 only

D.
Admin1 and Admin3 only

Explanation:
https://technet.microsoft.com/en-us/library/cc732979(v=ws.11).aspx