You have an Exchange Server 2010 organization named contoso.com. Your company plans to provide business continuity services for a company named Fabrikam. Fabrikam has an Exchange Server 2007 organization and uses the fabrikam.com SMTP domain. You need to configure your organization to queue and relay all e-mail messages sent to fabrikam.comfrom the Internet. What should you do？（）

A. Create a new remote domain， and then modify the mail exchange （MX） record for the fabrikam.compublic DNS domain.
B. Create a new remote domain， and then modify the mail exchange （MX） records for the contoso.compublic DNS domain.
Create a new External Relay Accepted Domain， and then modify the mail exchange （MX） records for the contoso.com public DNS domain.
D. Create a new External Relay Accepted Domain， and then modify the mail exchange （MX） records for the fabrikam.com public DNS domain.