Your Exchange Server 2010 organization contains two Hub Transport servers in a single site. The organization receives all e-mail sent to a SMTP domain named contoso.com.  Your company purchases another company that uses a SMTP domain named fabrikam.com. You plan to manage message hygiene for both SMTP domains.  You need to recommend changes to the organization to support the planned deployment.  The solution must prevent e-mail sent to fabrikam.com from being delivered to your internal organization.  What should you recommend？（）

• A、Deploy a new Hub Transport server，and then create remote domains.
• B、Deploy a new Hub Transport server，and then configure transport rules.
• C、Deploy an Edge Transport server，and then create accepted domains.
• D、Deploy an Edge Transport server，and then configure a federation trust.