What does a flashing red traffic light mean?

Answer: C — Stop and proceed when safe

A flashing red traffic light signals that drivers must come to a complete stop at the intersection. It indicates that the same rules apply as if there were a stop sign present. Once the driver has stopped, they must yield to all other traffic and pedestrians before proceeding when it is safe to do so. This means that after assessing the situation and ensuring it is clear, the driver may then continue through the intersection. A flashing red light is meant to grab a driver's attention, ensuring they are aware of the need to stop, as opposed to a regular traffic light where a solid red indicates the same requirement but may not carry the same sense of urgency. Because of this requirement to stop and yield to other road users before moving, the option that discusses stopping and proceeding when it is safe most accurately reflects the correct action a driver must take when encountering a flashing red light.