A prospect is looking for an economical way to access block level storage for their moderate I/O database applications. They are also looking to reduce their file server footprint. They have a total of 3 TB with only moderate future growth expected. High availability is a must, and they require snapshot capability. Which product do you recommend?

A.
CX4-120

B.
NS20

C.
CX4-240

D.
NS80G