How far from a fire hydrant is parking not allowed?

Answer: B — 15 feet

Parking is not allowed within 15 feet of a fire hydrant to ensure that firefighters have adequate access to the hydrant in case of an emergency. This distance is important because it allows for enough space for a fire truck to maneuver and connect hoses quickly without obstruction. Keeping this area clear is crucial for public safety, particularly in fire situations where every second counts. This regulation is in place to facilitate an efficient response from emergency services, ensuring that hydrants are readily available when needed.