A customer has acquired a company that did not use any form of mailbox management. They now have several hundred users with large mailboxes of 2,000 or more messages. I/O performance has been negatively impacted since the move of the users.
The customer has asked how to quickly address the performance issue without rearchitecting the environment. Which suggestion should you make to the customer?

A.
Implement 12 new disks and use metavolume striping to increase the disk count

B.
Implement a new SMTP queue and dedicate it to the new users

C.
Move the large mailboxes to a new Exchange organization

D.
Turn on Outlook Cached Mode to reduce I/O requirements