If a traffic signal light is green and a police officer signals for you to stop, you should:
- Obey the officer. ✓
- Obey the traffic signal.
- Do what the vehicle in front of you does.
Answer: A. Obey the officer.
You should obey the officer and stop, even though the light is green.
Why this is the answer
The handbook says to obey any direction, order, or signal a law enforcement officer gives you, and to follow those orders even when they conflict with existing signs, signals, or laws. That covers this exact situation: a green light tells you to go, but the officer's signal overrides it. So when the two disagree, the officer's hand signal controls and you stop as directed. The green signal rules in the handbook describe what the light means, but they do not cancel an officer's direction.
Why the other answers are wrong
- B. Obey the traffic signal. — The green light is what the officer is overriding here; the handbook says to follow an officer's orders even when they conflict with signals, so treating the light as the final word is wrong.
- C. Do what the vehicle in front of you does. — Copying the car ahead tells you nothing about what the officer wants, since that driver may not have seen the signal or may be reacting to something else entirely.
Remember it
Think of an officer's hand signal as sitting above the lights: when a person in uniform waves you through or stops you, that direction wins over the signal head.