Your company has a main office and a single branch office. The two offices are connected through a WAN link. You have Active Directory directory service site objects for each office. Domain controllers are associated with the appropriate site objects. Users in the main office are currently authenticated by domain controllers in the branch office. You need to ensure that users in the main office are authenticated by the domain controllers in the main office. What should you do?

A.
Clear the Bridge all site links option.

B.
Configure a preferred bridgehead server for the site for the main office.

C.
Associate the subnets for the main office with the site for the main office.

D.
Associate the subnets for the branch office with the site for the branch office.