You have an Exchange Server 2010 organization for a company named Contoso， Ltd. Contoso has the following security policy：  .Messages that contain the word budget cannot be sent to external recipients .Messages that contain the name Northwind Traders must be sent to the legal department automaticallyYou need to recommend a solution to meet the security policy.  What should you recommend？（）

• A、Create two transport rules.
• B、Create two message classifications.
• C、Create one transport rule and configure a legal hold.
• D、Create one message classification and configure a legal hold.