A company is currently planning to use virtual provisioning for consolidating Microsoft Exchange 2010. Ease of administration is their primary concern. They have requested your assistance in providing a design guideline.
What is a key design consideration?

A.
Configure in a larger pool with all mailboxes

B.
Configure in a single pool per Exchange 2010 mailbox

C.
Configure in a single pool

D.
Configure in a larger pool for each mailbox