Certkiller .com has a network that consists of a single Active Directory domain. A technician has accidently deleted an Organizational unit （OU） on the domain controller. As an administrator of Certkiller .com， you are in process of restoring the OU. You need to execute a non-authoritative restore before an authoritative restore of the OU. Which backup should you use to perform non-authoritative restore of Active Directory Domain Services （AD DS） without disturbing other data stored on domain controller（）

• A、Critical volume backup
• B、Backup of all the volumes
• C、Backup of the volume that hosts Operating system
• D、Backup of AD DS folders
• E、all of the above