Your network contains a single Active Directory site.
You install 10 new Exchange Server 2010 Service Pack 1 (SP1) Client Access servers. All
servers are configured to use a wildcard certificate.
Users connect to their mailboxes by using Windows Mobile 6.5 devices. All devices are
configured to connect to cas.contoso.com.
You need to ensure that the users can connect to their mailboxes by using
mail.contoso.com.
Which cmdlet should you use?

A.
set-activesyncdeviceaccessrule

B.
set-activesyncmailboxpolicy

C.
set-activesyncorganizationsetting

D.
set-activesyncvirtualdirectory