How will East Tier assist this organization with its data performance?

An online shopping website stores large amounts of product data and orders on a multi-tier IBM Storwize storage solution. All data is stored in a mixed pool including nearline, enterprise, and flash storage.

How will East Tier assist this organization with its data performance?
A . Creates image mode volumes on flash and enterprise storage
B . Placing new data directly on flash storage
C . Promotion of data from enterprise to flash storage
D . Promotion of data directly from nearline to flash storage

Answer: A