Which IBM Storwize feature helps resolve these issues?

A customer has a single, non-IBM storage system with 100 drives of the same capacity. The storage administrators spend most of their time trying to eliminate hot spots. The customer is considering an IBM Storwize V5020 purchase with approximately the same number of drives.

Which IBM Storwize feature helps resolve these issues?
A . A single storage pool
B . Volume migration
C . HyperSwap
D . Auto-storage pool balancing

Answer: B