You work as the enterprise exchange administrator at Xxx .The Xxx network consists of a domain named xxx .The Xxx network has a mail server named XXX-EX01.What actions must you take to do an unattended installation of Exchange Server 2010 server on XXXEX01？（）

• A、You should add recipient filter.
• B、You should add create Send connectors.
• C、You should run setup /ps.
• D、You should add setup.com in the script.