A customer is evaluating an IBM Storwize V5010 solution and wants to know what additional software functions are available.
Which additional feature on the IBM Storwize V5010 is a chargeable upgrade?

A. FlashCopy

B. Encryption

C. Data Reduction Pools
D. Compression

Reference: http://www.redbooks.ibm.com/redpieces/pdfs/sg248162.pdf