You configure a Windows Server 2008 R2 Hyper-V server with several virtual machines (VMs). <br /> A software vendor releases a software update for an application that runs on only one of the VMs. You need to plan a strategy that enables you to install and test the update without interrupting business operations and without corrupting data. <br /> What should you do first?()
A、Export the VM
B、Create a snapshot of the affected VM
C、Enable the Windows Volume Snapshot Service on the affected VM
D、Enable the Windows Volume Snapshot Service on the Hyper-V server