Your company’s network is shown in the exhibit. (Refer to the Exhibit.)
All client computers are members of the contoso.comActive Directory Domain Services (AD DS) domain. Each
network segment is represented by an AD DS site object that is named to match the network segment.
Your company plans to deploy Windows 7 to all client computers.
You need to manage the deployment to ensure that client computers in branch office C can activate Windows.
What should you do?

A.
Create a DNS service (SRV) resource record named _vlmcs._udp.BranchOfficeC._sites.contoso.com.

B.
Deploy the Multiple Activation Key (MAK) in branch office C.

C.
Deploy the Key Management Service (KMS) in branchoffice C.

D.
Create a DNS service (SRV) resource record named _vlmcs._tcp.BranchOfficeC._sites.contoso.com.

Explanation:
http://technet.microsoft.com/en-us/library/ee939272.aspx