Which command in an IOS H.323 gateway is used to communicate with the CallManager?

Which command in an IOS H.323 gateway is used to communicate with the CallManager?

A.
destination pattern 110

B.
dial-peer voice 11 pots

C.
session target ipv4:10.10.10.10

D.
ccm-manager redundant-host 10.10.101.10