A corporate environment includes Exchange Server 2010. The Exchange Server environment includes
one Client Access server, one Edge Transport server, one Hub Transport server, and one Mailbox
server. Email communication between employees in two specific departments is not permitted. You
need to recommend a solution for ensuring that email messages from employees in either
department are never sent to employees in the other department. What should you recommend?

A.
Create a journal rule.

B.
Create a transport rule on the Hub Transport server.

C.
Create a transport rule on the Edge Transport server.

D.
Configure litigation hold on the mailboxes of the employees in both departments.