A customer runs their virtual environment on a cluster of ESX v4.0 hosts connected to an EMC
VNX. They report there are long delays when they create large eager-zero thick virtual disks.
You recommend they upgrade their virtual environment to vSphere v5.0 to benefit from its VAAI
features. Which VAAI primitive addresses their issue?

A.
Block Zeroing

B.
Hardware assisted locking

C.
Full Copy

D.
Thin Provisioning Stun