Your network contains two servers that run the Server Core installation of Windows Server 2008 R2.  The two servers are part of a Network Load Balancing cluster. The cluster hosts a Web site.  Administrators use client computers that run Windows 7.   You need to recommend a strategy that allows the administrators to remotely manage the Network Load  Balancing cluster. Your strategy must support automation.  What should you recommend？（）

• A、On the servers， enable Windows Remote Management （WinRM）.
• B、On the servers， add the administrators to the Remote Desktop Users group.
• C、On the Windows 7 client computers，enable Windows Remote Management （WinRM）.
• D、On the Windows 7 client computers，add the administrators to the Remote Desktop Users group.