You work as an Exchange Administrator for ABC.com. The company has a Windows 2008 Active Directory-based network. You have just finished deploying an Exchange 2010 server and migrating all mailboxes including resource mailboxes from Exchange Server 2003.

After the migration from the Exchange 2003 server was complete, you noticed that the resource mailboxes were showing up as shared mailboxes and not resource mailboxes.

You realize that you need to convert the shared mailboxes to Exchange 2010 resource mailboxes. While logged into the Exchange Management Console, you do not see any option to convert a mailbox.

What should you use to convert the Exchange 2010 shared mailboxes to Exchange 2010 resource mailboxes?

A.
Exchange Troubleshooting Assistant.

B.
Exchange System Manager.

C.
Exchange Management Shell.

D.
Command prompt.