A customer has an existing IBM XIV Gen3 solution with 3 TB drives and nine modules. While performance is acceptable, the customer wants to increase the performance of small-block reads. The current nine modules are running at 60% of capacity.
Which solution should the technical specialist recommend?

A. Add an IBM FlashSystem 900 as a separate pool.

B. Add the SSD caching option on five modules.

C. Add the SSD caching option on all nine modules.
D. Add three more data modules to improve performance.

Reference: https://books.google.com.pk/books?id=GQSlAgAAQBAJ&pg=PA20&lpg=PA20&dq=ibm+increase+the+performance+of+small+block+reads&source=bl&ots=p9wvr-wpdb&sig=ACfU3U1otas71JSmTrTj6JS16DzOY5Rujw&hl=en&sa=X&ved=2ahUKEwirw6OtwenjAhUF2-AKHQU3AUIQ6AEwAHoECAkQAQ#v=onepage&q=ibm%20increase%20the%20performance%20of%20small%20block%20reads&f=false