When an H.323 trunk is added for Call Control Discovery, which statement is true?

When an H.323 trunk is added for Call Control Discovery, which statement is true?
A . The
B . 323 trunk is added by selecting Inter-Cluster Trunk (Non-Gatekeeper Controlled) and Device Protocol Inter-Cluster Trunk. The Enable SAF check boxshould be selected in the trunk configuration.
C . The
D . 323 trunk is added by selecting Inter-Cluster Trunk (Non-Gatekeeper Controlled) and Device Protocol Inter-Cluster Trunk. The Trunk Service Typeshould be Call Control Discovery.
E . The
F . 323 trunk is added by selecting Call Control Discovery Trunk and then selecting
G . 323 as the protocol to be used.
H . The
. 323 trunk is added by selecting
. 323 Trunk, and selecting Inter-Cluster Trunk as the Device Protocol. The destination IP address field is configured as`SAF’ to indicate that this trunk is used for SA

Answer: A