An administrator must decommission a datastore.
Before unmounting the datastore, which three requirements must be fullfilled? (Choose three.)
A.
No virtual machines reside on the datastore.
B.
The datastore is not used for vSphere HA heartbeat.
C.
No registered virtual machines reside on the datastore.
D.
The datastore must not have any extents.
E.
The datastore must not be part of a datastore cluster.