You have an Exchange Server 2010 that contains five mailbox servers.Mailbox server Server1 host a mailbox database named DB1.DB1 contains 300 user mailboxes.You create a new public folder database named Public2 on Server1.You need to ensure that all users that have mailboxes in DB1 store new public folders in Public2. What should you do？（）

• A、From Exchange Management Console， modify the propierties of DB1.
• B、From Exchange Management Console， modify the propierties of Public.
• C、From Exchange Management Console， modify the propierties of Server1.
• D、From Exchange Management Shell， modify the propierties of each mailbox.