You have an Exchange Server 2007 environment. A transaction log volume on a Mailbox server runs out of available space. Some users report that they are unable to access their mailboxes. You need to restore service to these users as soon as possible. What should you do?

A.
Enable circular logging, and run the Mount-Database cmdlet

B.
Run the Clean-MailboxDatabase cmdlet, and run the Mount-Database cmdlet

C.
Move 100 of the oldest transaction logs, and run the Mount-Database cmdlet. Perform a full backup of the database

D.
Compress the database volume, and run the Mount-Database cmdlet. Perform a full backup of the database