问题：

[单选]

Your network consists of a single Active Directory domain. Your main office has an Internet connection. Your company plans to open a branch office. The branch office will connect to the main office by using a WAN link. The WAN link will have limited bandwidth. The branch office will not have access to the Internet.  
The branch office will contain 30 Windows Server 2008 R2 servers.  
You need to plan the deployment of the servers in the branch office. The deployment must meet the  following requirements：  
èInstallations must be automated.  
èComputers must be automatically activated.  
èNetwork traffic between the offices must be minimized. 
What should you include in your plan？（）

A . In the branch office，implement Key Management Service（KMS），a DHCP server，andWindowsDeployment Services （WDS）.
B . Use Multiple Activation Key （MAK） Independent Activation on the servers. In the main office，implement a DHCP server and Windows Deployment Services（WDS）.
C . In the main office，implement Windows Deployment Services（WDS）. In the branch office，implement a The safer ，easier way to help you pass any IT exams.DHCP server and implement the Key Management Service（KMS）.
D . Use Multiple Activation Key（MAK） Independent Activation on the servers. In the main office，implement a DHCP server. In the branch office implement Windows Deployment Services（WDS）.