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 mandated by law in many jurisdictions, including Illinois, to provide adequate space for fire trucks and other emergency vehicles to maneuver when connecting hoses to the hydrant. A clear zone around a fire hydrant allows firefighters to operate efficiently during emergencies, thereby helping to safeguard lives and property. Choosing a greater distance than 15 feet, such as 20 or 25 feet, may also seem reasonable, but the legal requirement stipulates a minimum of 15 feet, making it the correct answer. Parking too close can lead to fines and impeding emergency services, reinforcing the importance of understanding and following these regulations.