A customer wants to consolidate their MS Exchange environment. The current environment consists of 4,250 mailboxes with an average size of 75 MB. The customer’s priorities are:
1. Price
2. Storage availability
3. Performance
4. Ease of management

Which best meets the customer’s criteria?

A.
MS Exchange Clustered servers and NS20 with iSCSI

B.
MS Exchange Clustered servers and NS40 with iSCSI

C.
MS Exchange server and NS20 with iSCSI

D.
MS Exchange server and NS40 with iSCSI