What would your reply be?

You work as the network administrator at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. Domain.com has its headquarters located in London and branch office located in Paris. All servers on the Domain.com network run
Windows Server 2008 and all client computers run Windows Vista. The newly appointed Paris office trainee named Rory Allen has recently asked you at which level(s) would you assign GPO settings that requires being overriden at the domain level.
What would your reply be?

A.
You should inform Rory Allen that you would assign the settings at the Domain level.

B.
You should inform Rory Allen that you would assign the settings at the OU ans Site levels.

C.
You should inform Rory Allen that you would assign the settings at the OU level.

D.
You should inform Rory Allen that you would assign the settings at the Site level.

Explanation:
GPO’s at the OU level attain priority over GPO’s at the domain level. GPO’s at the domain level, in turn, attain priority over GPO’s at the site level.