Your virtual environment includes Hyper-V host servers and VMware ESX Server hosts. You manage the environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You need to enable non-administrative users to manage snapshots or checkpoints for virtual machines （VMs） that are hosted on either host system. What should you do？（）

• A、Create checkpoints in VMM.
• B、Create snapshots by using Hyper-V Manager.
• C、Create checkpoints by using the VMM Self-Service Portal.
• D、Create snapshots from within the Virtual Machine Connection console.