问题：

[单选]

Your company has a branch office that contains a Windows Server 2008 R2 server. The server runs Windows Server Update Services （WSUS）.  
The company opens four new satellite offices. Each satellite office connects to the branch office by using a dedicated WAN link.
You need to design a strategy for patch management that meets the following  requirements：  
èWSUS updates are approved from a central location.  
èWAN traffic is minimized between the branch office and the satellite offices.
What should you include in your design？（）

A . In each satellite office， install a WSUS server. Configure each satellite office WSUS server as a replica of the branch office WSUS server.
B . In each satellite office， install a WSUS server. Configure each satellite office WSUS server as an autonomous server that synchronizes to the branch office WSUS server.
C . On the branch office WSUS server， create a computer group for each satellite office. Add the client computers in each satellite office to their respective computer groups.
D . For each satellite office，create an organizational unit（OU）.Create and link a Group Policy object（GPO）to each OU. Configure different schedules to download updates from the branch office WSUS  server to the client computers in each satellite office.