What should you do when it is against the law to follow a fire truck responding to a fire alarm?

Answer: A — Stay at least 500 feet behind the fire truck

The correct response is to stay at least 500 feet behind a fire truck that is responding to a fire alarm. This distance is specified to ensure public safety and allow emergency vehicles to operate efficiently. By maintaining a minimum distance, you reduce the risk of obstructing the fire truck and allow it to maneuver effectively through traffic to reach the emergency scene. This rule is critical because emergency vehicles may suddenly change speed or direction, and being sufficiently far behind gives you enough time to react and keeps your vehicle out of harm's way. Additionally, following too closely can hinder other vehicles that may also need to yield to the fire truck, further complicating the emergency response.