What does a flashing red traffic light indicate?

Answer: C — Treat it like a stop sign; come to a complete stop

A flashing red traffic light indicates that drivers should treat it as if it were a stop sign. This means that drivers must come to a complete stop before proceeding. The purpose of a flashing red light is to alert drivers to potential hazards or intersections where they need to exercise caution. After stopping, drivers should yield to any oncoming traffic or pedestrians before continuing through the intersection. In contrast, the incorrect options suggest alternative actions that are not appropriate for a flashing red light. For example, going with caution or preparing to stop but continuing if clear would not ensure the safety measures intended by the use of a flashing red light, which is designed to promote full stops and careful assessment of the intersection before proceeding.