Final answer:
The correct action when seeing a sign telling you to watch for people entering a crosswalk is to slow down and be prepared to stop, which enhances pedestrian safety.
Step-by-step explanation:
When you see a road sign that says "Watch for people entering a crosswalk or crossing your path," the appropriate action to take is b) Slow down and be prepared to stop. This ensures the safety of pedestrians who may be crossing the road. It is important to be vigilant and cautious in areas where pedestrian traffic is common, especially near schools, campuses, and busy intersections. Vehicles that speed through these areas without regard for the speed limit put pedestrians at risk. In contrast, traffic signals regulate vehicle and pedestrian traffic, providing safe times for pedestrians to cross and making cars slow down.