You work as the enterprise exchange administrator at Company.com.The Company.com network consists of a single Active Directory domain named Company.com.Company.com has an Exchange Server 2010 organization.Company.com makes use of an Edge Transport server.The employees at Company.com usually receive e-mail from another company named Courseware Publishers.The  employees at Courseware Publishers uses the uses the courseware.com e-mail address suffix.However， due to unforeseen circumstances， Company.com， has acquired Courseware Publishers.You have received instructions from the CIO to make sure that the messages sent from Courseware Publishers have their courseware.com e-mail address suffix in their source address. What should you do？（）

• A、The best option is to create an accepted domain.
• B、The best option is to create an e-mail address policy.
• C、The best option is to create a Receive connector.
• D、The best option is to create an address rewrite entry.