You have an Exchange Server 2010 organization that contains five Mailbox servers and five Client Access servers.All users in the organization connect to their mailboxes by using Outlook Anywhere.You create a Client Access server array.You need to ensure that all users can connect to the Client Access server array.What should you do？（）

A. From the Exchange Management Shell， run the Set-Mailbox cmdlet
B. From the Exchange Management Shell， run the Set-MailboxDatabase cmdlet
C. From the Exchange Management Console （EMC）， modify the properties of each mailbox database
D. From the Exchange Management Console （EMC）， modify the properties of each Client Access server object