You have an Exchange Server 2007 environment. You want to add a new Hub Transport server. You need to configure anti-spam agents on the new Hub Transport server before the server accepts any e-mail. You need to achieve this goal without interrupting existing e-mail flow. Which should you do?

A.
Run the setup /DoNotStartTransport command.

B.
Run the setup /UpdatesDir command.

C.
Stop the Background Intelligent Transfer Service (BITS), and then run the setup command.

D.
Configure a new transport rule on the existing Hub Transport server.