You have an Active Directory domain named contoso.com.
You have an Exchange Server 2010 organization that contains a Client Access server named CAS1. Users connect to CAS1 from the Internet using mail.contoso.com.
The organization contains the following mobile clients:
. Windows Mobile 5.0
. Windows Mobile 6.1
. Windows Mobile 6.5
You plan to install a certificate on CAS1.
You need to ensure that all clients can connect to CAS1 from the Internet using Exchange ActiveSync.
Which name should you include in the certificate?
A. *.contoso.com
B. CAS1.contoso.com
C. EAS.contoso.com
D. mail.contoso.com
