A customer has a Dell EMC Unity 550F with a single pool consisting of 10 drives configured as a RAID 5 (4+1) configuration.
What is the minimum amount of drives required to expand the pool?

A.
1

B.
5

C.
6

D.
10

Explanation:
Reference: https://www.emc.com/dam/uwaem/documentation/unity-p-pool-config.pdf (42)