问题：
[单选] You have a server that runs Windows Server 2008. The server has the Windows Server virtualization roleservice installed and has one virtual machine. The virtual machine runs Windows Server 2008. You plan to install a new application on the virtual machine. You need to ensure that you can restorethe virtual machine to its original state in the event the application installation fails. What should you do？（）
Log on to the virtual host and enable the Remote Differential Compression Features.。Log on to the virtual host and enable the Windows Recovery Disk feature.。From Virtualization Management Console， create a snapshot.。From Virtualization Management Console， save the state of the virtual machine.。
