Your network contains three servers that run Windows Server 2008 R2. The servers are configured as shown in the following table.
Server name Role services
Server1 Remote Desktop Connection Broker (RD Connection Broker) Server2 Remote Desktop Virtualization Host (RD Virtualization Host) Remote Desktop Web Access (RD Web Access)
Server3
Remote Desktop Session Host (RD Session Host)
On Server1, you configure a virtual desktop pool named Pool1. Pool1 contains a Windows 7 virtual machine (VM) named Computer1.
You need to ensure that when a user logs off of Computer1, all of the changes made to Computer1 are discarded.
What should you do?

A.
On Server2, enable shadow copies.

B.
On Server2, take a snapshot of Computer1 and rename the snapshot RDV_Rollback.

C.
From the properties of Pool1 on Server1, modify the Automatically save virtual machines setting.

D.
From the Remote Desktop Session Host Configuration console on Server1, modify the Delete temporary folders on exit setting.