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 contains quite a few internal DNS server.You have received instructions from the CIO to make sure that the Internet names are resolved by the Hub Transport servers that uses the external DNS servers. What should you do？（）

• A、The best option is to change the properties of the default remote domain.
• B、The best option is to change the message delivery properties of the Hub Transport global settings.
• C、The best option is to change the properties of a Send connector.
• D、The best option is to change the properties of the Hub Transport server object.