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 toExchange Server 2010.  What should you do？（）

• A、Enable public folder referrals.
• B、Run the New Organization Relationship wizard.
• C、Create public folder replicas on an Exchange Server 2010 server.
• D、Run the Microsoft Exchange Inter-Organization Replication tool from an Exchange Server 2003server.