Refer to the exhibit.

A network engineer configures a Cisco Unified Communications Manager and VCS integration via a SIP trunk. Endpoint A is able to conduct video calls to Endpoint B. When Endpoint A attempts to share presentation content with Endpoint B, Endpoint B sees the presentation video on the main screen rather than on the presentation display. What is the cause?

A.	The default MTP telephony payload is incorrect.
B.	The SIP trunk is not running on all active Cisco Unified Communications Manager nodes.
C.	MTP is not forced to be required.
D.	BFCP is not enabled.
E.	The MTP preferred codec is incorrect for content presentation.