Refer to the exhibit,

You are proposing a storage solution using VNX to support a Microsoft Exchange 2010
virtual implementation on Microsoft Hyper-V. You have worked with the customer to
understand the Exchange requirements, which are described in the exhibit. Based on
availability, performance, and Exchange mailbox size requirements, you are recommending
RAID 5 with 7.2K rpm NL/SAS disks. Following EMC best practices, what is the minimum
number of spindles required for this environment?

A.
14

B.
18

C.
27

D.
37