How far must you park from a fire hydrant?

Answer: B — At least 15 feet

Parking at least 15 feet away from a fire hydrant is crucial for ensuring that emergency services can access the hydrant quickly in case of a fire. This distance is established by law to prevent obstructing the path to the hydrant, which is essential for fire trucks to connect their hoses and draw water during an emergency. If a vehicle is parked too close, not only does it hinder fire-fighting efforts, but it could result in both fines and unsafe situations during emergencies. Other distances provided in the choices are either too short or too long, which do not align with the established parking regulations for fire hydrants.