Refer to the exhibit.

Which trunks would be most suitable for Connection Y?

A.	an H.225 trunk (gatekeeper-controlled)
B.	intercluster trunk (gatekeeper-controlled)
C.	a SIP trunk on the U.S. cluster and an intercluster trunk on the remote cluster
D.	intercluster trunk (nongatekeeper-controlled)
E.	No extra connections are required. As long as IP connectivity exists, you need only configure a route pattern for each site. The Cisco Unified CommunicationsManager will automatically forward the calls over the WAN if the destination directory number is not registered locally.