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？（）
- AFrom the Exchange Management Shell， run the Set-Mailbox cmdlet
- BFrom the Exchange Management Shell， run the Set-MailboxDatabase cmdlet
- CFrom the Exchange Management Console （EMC）， modify the properties of each mailbox database
- DFrom the Exchange Management Console （EMC）， modify the properties of each Client Access server object