What does a flashing red traffic signal mean?

Answer: D — Treat it like a stop sign

A flashing red traffic signal means that drivers must treat it like a stop sign. This signals that the vehicle must come to a complete stop at the intersection. Once stopped, the driver should look for any oncoming traffic or pedestrians and only proceed when it is safe to do so. This traffic signal indicates a situation that requires full awareness and caution before proceeding, similar to the actions taken at a stop sign. Understanding this can help prevent accidents at intersections and ensures that all road users can navigate safely. The other options suggest alternative actions that do not align with the requirements of a flashing red signal; hence, they would lead to incorrect responses to the traffic indication.