What would be a design approach to solve this issue?

A customer has a new Nimble CS3000 21T storage systems and is facing latency issues for his 2TB ERP database.

What would be a design approach to solve this issue?
A . Perform controller upgrade to a Nimbel CS3000 storage systems
B . Add additional SSd drives as cache to the system and PIN the volume
C . Enable storage tiering on the system and map the volume to the new tier
D . Change RAID of the drives to RAID -1and setup quality of services for the volume

Answer: B