In clustered Data ONTAP, snapshots are scheduled by creating
A. A snapshot policy within the vserver that applies to all volumes in the vserver
B. A snapshot policy within the vserver that is applied at the volume level
C. A snapshot policy within the clustershell that can be used by every vserver but applied individually at the volume level
D. A snapshot policy within the clustershell that can be used by each vserver but applies to all volumes within the vserver