An engineer is troubleshooting an image quality issue for a call on an SX20 and must verify the video protocol. Which menu navigation sequence does the engineer use to find the video protocol on the web interface?
A. Call Control > Call Control > Participants and click the triangle to get more call detail
B. Configuration> Video > Input > Participants and click the triangle to get more call detail
C. Configuration> Conference > Rate > Participants and click the triangle to get more call detail
D. Configuration> System Configuration > Conference > Participants and click the triangle to get more call detail
