When a police officer is controlling traffic at an intersection, whose signals must drivers obey?

Answer: B — The police officer's signals

Drivers must obey the signals given by the police officer who is controlling traffic at an intersection. The authority of a police officer directing traffic supersedes any traffic lights or signs in the vicinity. When an officer is present and providing directions, they are trained to manage traffic flow effectively, ensuring safety and order, especially in complex situations or emergencies. Obeying the officer's signals is crucial; it may involve directing traffic during road construction, directing vehicles around accidents, or controlling traffic during events. The lights may indicate one thing, but the officer's commands may reflect a different reality on the ground that necessitates immediate compliance for safety reasons. Therefore, following the officer's signals takes precedence in ensuring the safety of all roadway users.