What is a pre-requisite for increasing datastore capacity? (Choose the best answer.) 

Answer options:

A. The backing device for the datastore has enough free space.
B. The datastore is managed by Storage DRS (SDRS).
C. The datastore is 100% full.
D. There are NO powered-on virtual machines on the datastore.

A

Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.storage.doc/GUID-D57FEF5D-75F1-433D-B337-E760732282FC.html