A technician has set up a new conference room with a TV and a video soundbar. The technician wants to test the system with a conference call. During the test, the TV speaker produces sound, but the soundbar does not.
Which of the following is the MOST likely cause of the issue?


A. The volume on the TV needs to be turned up.
B. The conference call needs to be unmuted for audio.
C. An incorrect HDMI cable is being used.
D. The TV's HDMI-ARC port is not being used.