What is a core function of vStorage API support in EMC NetWorker?

What is a core function of vStorage API support in EMC NetWorker?
A . Eliminates intermediate storage required by VCB to cache the snapshots
B . Supports ESX 3.5, 4.0 and 4.1
C . Change Block Backup and Recovery Support.
D . Utilizes intermediate copy step required by VC

View Answer

Answer: A