What is the recommended solution to achieve better performance from a VMAX3 SATA disk pool?

What is the recommended solution to achieve better performance from a VMAX3 SATA disk pool?
A . Add FAST Cache to the system
B . Add additional SATA drives, at the same speed and smaller drive size, to the pool
C . Add additional SATA drives, at the same speed and size, to the pool
D . Add FC drives to the pool

Answer: C