You have an Exchange Server 2010 organization. 
You have a global security group named Legal that contains all the members of your companys legaldepartment. 
The companys security policy states that the Legal group must be able to search all mailboxes for e-mailmessages that contain specific keywords. 
You need to recommend a solution for the organization that complies with the security policy. 
What should you include in the solution？（）

You have an Exchange Server 2003 organization. 
Users access public folders by using Microsoft Office Outlook 2003 and Outlook Web App. You plan to transition the organization to Exchange Server 2010. 
You need to ensure that users can access public folders after their mailboxes have been moved to Exchange Server 2010. 
What should you do？（）