When a traffic light turns yellow at an intersection, you must
- stop unless it is unsafe to do so ✓
- stop
- proceed with caution
- reduce your speed
Answer: A. stop unless it is unsafe to do so
When a yellow light appears, you need to bring the car to a stop before the intersection if you can do so safely.
Why this is the answer
The BC handbook describes a steady yellow light as a warning that the signal is about to turn red. It says you must stop before entering the intersection unless stopping in time is not safe. That makes the correct choice a conditional stop: you should not simply stop no matter what, and you should not treat yellow as permission to keep going. The point is to make the safe stop when one is possible.
Why the other answers are wrong
- B. stop — Stopping is required only when you can do it safely; the handbook allows you to continue if a safe stop is not possible.
- C. proceed with caution — A yellow light is a warning to stop if you can, not a general signal to proceed through the intersection.
- D. reduce your speed — Slowing down alone does not meet the rule; the handbook says to stop before the intersection when you can safely stop in time.
Remember it
Think of yellow as "prepare to stop," not "hurry through."