An administrator attempts to create a Thick Provisioned Virtual Disk (VMDK) on an NFS datastore; but it fails.

Which two reasons would explain the failure? (Choose two.)

A. Datastore is on an NFS 3 storage server that does not support Hardware Acceleration

B. Datastore is on an NFS 4.1 storage server

C. Only VMFS datastores support -Thick Provisioned- VMDK

D. The NFS datastore was not created on a -Thick Provisioned- device