You are working with Certkiller in their lab to test a non-gatekeeper-controlled inter-cluster trunk between two Cisco CallManager clusters. Which of these parameters needs to be configured so that the inter-cluster trunk functions properly?

A.
A unique device name throughout the cluster

B.
Up to four IP addresses of remote Cisco CallManager server

C.
Call classification set to OffNet

D.
A device pool name manually configured for the new trunk