Final answer:
The correct answer to what a motorist must do at a railroad crossing with flashing lights or ringing bells is c. Stop 15 feet before the track. This ensures the safety of all roadway users.
Step-by-step explanation:
At a railroad crossing, flashing lights and ringing bells signal that a train is approaching. It is imperative to follow strict safety rules in these scenarios. The correct action to take when encountering flashing lights or ringing bells at a railroad crossing is to:
- Stop 25 feet before the track.
- Stop 15 feet before the track.
- Stop and proceed with caution.
The provide correct option in final answer is c. Stop 15 feet before the track. This ensures that you're at a safe distance from the tracks, should there be any debris propelled forward by the train's movement or other unexpected situations. It's essential not only for the motorist's safety but also for the safety of passengers and pedestrians nearby.