You have an Exchange organization named nwtraders.com.All servers in the organization have Exchange Server 2010 Service Pack 1 （SPl） installed.Your company acquires another company named Contoso， Ltd. You plan to create new mailboxes for each user from Contoso. You need to ensure that each new mailbox can receive e-mail messages sent to contoso.com.Which two objects should you create？（）

• A、a Receive connector
• B、a Remote domain
• C、an organizational relationship
• D、an accepted domain
• E、an e-mail address policy