How should a driver handle a traffic signal that is malfunctioning?

Answer: B — Treat it as a four-way stop

When a traffic signal is malfunctioning, it is important for a driver to treat it as a four-way stop. This means that all approaching vehicles must come to a complete stop, yield to the vehicles that arrive first, and exercise caution when proceeding through the intersection. This approach helps ensure the safety of all road users, reducing the risk of accidents that could occur due to confusion over who has the right of way. In a malfunctioning signal situation, drivers may not be able to determine if they have a green light or a red light, creating potential hazards. By treating the intersection as a four-way stop, drivers can navigate safely and prevent collisions caused by uncertainty about the traffic signal's condition. This is not only a safe practice but also follows traffic laws designed to maintain order and safety at intersections when signals fail.