you manage a server that runs windows server 2008. The windows backup and restore utility is installed on the server. You need to create a full backup of all system state data to the DVD drive (R: drive) on the server.<br /> Which command should you run on the server?()
A、WBadmin enable backup –addtarget:R: /quiet.
B、Wbadmin enable backup –addtarget:C: /quiet.
C、Wbadmin start backup –allCritical –backuptarget:C: /quiet.
D、Wbadmin start backup –allCritical –backuptarget:R:/ quiet.