What are you required to do according to the following traffic sign?

1. Warn pedestrians by honking loudly and turning on the headlights.
2. Continue driving and make sure that the pedestrians clear away from the roadway.
3. Correct answer: When you're driving and approaching this traffic sign, always slow down and even stop if necessary to allow pedestrians to safely cross the road.
4. Honk and warn the crossing pedestrians.

WhyAt a pedestrian crossing, slow down and stop if needed so people can cross safely. A horn or flashing lights are no substitute for that.