A large amount of data was deleted from a volume. After a few hours, the space was still not available to
NFS clients accessing the volume.
What are two reasons that would account for this problem? (Choose two.)

A.
The volume contains Snapshot copies that were taken before the data was deleted.

B.
There is a thick-provisioned LUN in the volume.

C.
The deleted data was all deduplicated data.

D.
The client needs to re-scan the volume to detect the changes.