An Exchange Server 2007 computer named Exch1 fails. You build a new Microsoft Windows Server 2003 computer named Exch1 to replace the failed computer. Before you restore the mailbox databases from backup, you need to restore the Exchange Mailbox server role on Exch1. What should you do?

A.
Restore the System State data and the Microsoft Information Store data

B.
Run the Setup /NewProvisionedServer /role:Mailbox command

C.
Run the Setup /m:Install /role:Mailbox command

D.
Run the Setup /m:RecoverServer command