Your organization has a n Active Directory Domain Services (AD DS) domain. All client computers run Windows 7. You use Microsoft System Center Virtual Machine Manager (VMM) 2008 R2 to manage your Hyper-V hosts. Your environment includes Microsoft Enterprise Desktop Virtualization (MED-V). You plan to deploy a virtual machine (VM) image to all client computers. You need to ensure that user state information is maintained between sessions in the VM. What should you do? （）

• A、Use VMM to configure placement settings.
• B、Configure a MED-V revertible workspace policy.
• C、Configure a MED-V persistent workspace policy.
• D、Use Hyper-V Manager to create a revert snapshot.