When driving past a school zone, market area, or playground, what special driving behavior is required?

1. Reduce speed well below posted limits and maintain heightened alertness for children running into the street unpredictably
2. Maintain the full 50 km/h urban limit because children are taught road safety in school
3. Sound the horn every 10 seconds and maintain normal highway speed
4. Overtake slower vehicles quickly to clear the school zone as fast as possible