What are two possible reasons the entire disk group Is offline?

A vSAN disk group contains one cache drive and four capacity drives. A drive that belongs to this disk group has failed. The entire disk group containing the failed drive Is offline .

What are two possible reasons the entire disk group Is offline? (Choose two.)
A . Deduplication and compression is enabled on the cluster.
B . RAID-5/6 (Erase Coding) is one of the failure tolerance methods in use.
C . Two capacity dnves in the disk group are offline.
D . The failed drive is configured as a cache drive for the disk group.
E . Data-at-rest encryption is enabled for the disk group.

Answer: BC