The graph shows the speed of Tony's car as he drives to work. Which section of the graph could show where Tony was stopped at a traffic light?

section C Tony was stopped at a traffic light
Explanation
Step 1
when Tony stopped at a traffic light, the speed of the car was 0 (zero), because the car has not movement
then, find the section where the speed is zero in the graph
in section C, the speed was zero, then in section C Tony was stopped at a traffic light.
I hope this helps you