Your network contains an Active Directory forest named fabrikam.com. The forest contains an Active Directory site named Denver. You have an Exchange Server 2010 SP1 organization. You have a Client Access server named CAS1.

You need to ensure that you can install Outlook Anywhere on CAS1. The Solution must minimize the number of features installed on CAS1.

Which features should you install on CAS1?

To answer, select the appropriate feature or features in the answer area.

A.
RPC over HTTP Proxy.

B.
SMTP Server.

C.
Message Queuing.

D.
Failover Clustering.

Explanation:
Reference:

http://technet.microsoft.com/en-us/library/bb123741.aspx