You need to recommend a BitLocker recovery method that meets the company’s technical requirements.  
Which recovery method should you recommend？（）

A.Take a snapshot of each VM， and then run a full backup of the Hyper-V hosts by using Windows Server  Backup.
B.Shut down the VMs，and then run a full backup of the Hyper-V hosts by using Windows Server Backup. Restart the VMs when the backup is complete.
C.From each VM,run a full backup by using Windows Server Backup， and then run a full backup of the Hyper-V hosts by using Windows Server Backup.
D.From each VM,run a full backup by using Windows Server Backup. Shut down the VMs， and then run a full backup of the Hyper-V hosts by using Windows Server Backup. Restart the VMs when the backup is complete.

A.Add Admin2 to the Domain Admins global group.
B.Add Admin2 to the Backup Operators domain local group.
C.Delegate full control ofall objects in graphicdesigninstitute.com to Admin2.
D.Delegate full control of all objects in the Domain Controllers organizational unit（OU）to Admin2.

A.Active Directory Recycle Bin
B.Active Directory snapshots
C.non-authoritative restores
D.tombstone reanimation