Refer to the exhibit. You are troubleshooting the Cisco CRM Communications Connector application on a client PC and you notice that the call duration is not saved as a note in the phone activity record. Select the answer that best identifies why this feature is not working.

A.
LINECALLINFO_CLOSED message is missing

B.
LINE_CALLSTATE_UNKNOWN shows that the state of the call is unknown therefore the call duration cannot be tracked

C.
LINCALLSTATE_DISCONNECTED message is missing

D.
LINE_TERMINATED message is missing