单项选择题

A.Restore the mailbox database to DB1 and then run the Move-Mailbox cmdlet.
B.Restore the mailbox database to DB1 and then restore the mailbox.Run the New- MoveRequest cmdlet.
C.Restore the mailbox database to a Recovery Mailbox database and then run the Connect- Mailbox cmdlet.
D.Restore the mailbox database to a Recovery Mailbox database and then restore the mailbox.Run the Export-Mailbox cmdlet.