Final answer:
Vehicles must stop no closer than 15 feet and no more than 50 feet from the closest rail at a railroad crossing for safety reasons.
Step-by-step explanation:
When approaching a railroad crossing, a vehicle must stop no closer than 15 feet or no more than 50 feet from the closest rail. This ensures that there is ample space for the vehicle to stop safely without endangering anyone within the vehicle or nearby, including the train and its passengers. It is important to maintain this distance to prevent collisions and ensure the safety of all parties involved.The correct answer is 2) 150, 300 feet. According to road safety regulations, vehicles must stop no closer than 150 feet or no more than 300 feet from the closest rail. This is to ensure the safety of both the vehicle occupants and the people using the rail.