A customer is using SAN Copy to migrate data between two EMC VNX. They use Navisphere
Secure CLI to manually select the source and destination LUNs for the SAN Copy session. The
source LUN is 419430400 blocks in size, with 367001600 blocks used for data. They select a
destination LUN that is 367001600 blocks in size. The SAN Copy session starts, but fails to
complete. What is the most likely cause for this SAN Copy session behavior?

A.
The source and destination LUNs do not have the same block count.

B.
The source LUN is already being replicated to a different destination LUN.

C.
The source and destination LUNs are not the same RAID type.

D.
The destination LUN needs to have a smaller block count than the source LUN.