In which two ways can a cloud administrator dynamically increase a VMFS datastore? (Choose two.)

In which two ways can a cloud administrator dynamically increase a VMFS datastore? (Choose two.)
A . Add a new local storage disk on ESXi and restart VMFS service.
B . Expand the datastore within the extent.
C . Rescan all hosts to see the current storage and modify the extent.
D . Add an extent (LUN).

Answer: B,D