You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed. The organization contains two Mailbox servers named Server1 and Server2.Each Mailbox server has one mailbox database and one public folder database. You discover that all users create public folders on Server1 only. You need to ensure that all users create public folders on Server2 only. What should you do？（）

A. Move all mailboxes to Server2.
B. Modify the properties of both mailbox databases.
C. Remove all public folder replicas from Server1.
D. Modify the properties of both public folder databases.