You are designing the Exchange Server 2010 SP1 organization for A . Datum. You need to ensure that all of the email sent to the Internet by the A. Datum users has a return email address in the required format.

What should you include in the design?

A.
a Hub Transport server and address rewrite entries

B.
a Hub Transport server, three Hub Transport rules, and an email address policy

C.
an Edge Transport server and address rewrite entries

D.
an Edge Transport server, three Edge Transport rules, and an email address policy