After stopping for a school bus, you may proceed again when:

• A. The bus has resumed motion and the red lights have stopped flashing
• B. The bus resumes motion but red lights stay flashing
• C. The bus continues to flash red lights
• D. The bus disappears

Answer: (A)

When a school bus is stopped and red lights are flashing, traffic must stop because children may be crossing. You may proceed again only after the bus has started moving and the red lights have stopped flashing, signaling that the children are clear and it’s safe to go. Waiting for the lights to go out ensures you’re not interrupting kids crossing or leaving the scene while someone might still be getting off. If the lights are still flashing or the bus is still stopped, you should not move. If the bus disappears, you still don’t have a signal that it’s safe, so you wouldn’t go either.