Which of the following must you obey over the other three?

In situations where you encounter conflicting directions, the instructions given by a policeman take precedence over other traffic control devices and indicators. Law enforcement officers are trained to manage traffic and ensure the safety of all road users, and their commands are legally binding. If a policeman is directing traffic, their signals should be followed regardless of traffic signals, road signs, or requests from passengers, all of which cannot override a police officer’s authority in a traffic situation. This helps maintain order and safety, especially in complex scenarios such as accidents, road closures, or other emergencies.