A VMAX3 array needs additional capacity added to maintain performance?

A VMAX3 array needs additional capacity added. The array is providing acceptable performance and the administrator wants to ensure performance is maintained as new drives are added.

A VMAX3 array needs additional capacity added to maintain performance?
A . Add storage to all tiers maintaining the existing ratio
B . Add storage to a new internal SRP
C . Add storage to the most over utilized tier
D . Add storage to a new external SRP

Answer: A