How should a driver respond to a flashing red signal?

Answer: C — Treat it as a stop sign

When approaching a flashing red signal, a driver should treat it as a stop sign. This means that the driver must come to a complete stop at the intersection, checking for oncoming traffic and pedestrians before proceeding. This response is crucial for maintaining safety, as the flashing red indicates that there may be a potential hazard or that cross traffic has the right of way. In contrast, ignoring the signal or continuing to drive can lead to serious accidents, as others may not be expecting a vehicle to disregard the stop requirement. Proceeding with caution is not sufficient without first stopping; this might suggest a partial or unclear understanding of the signal's importance. Therefore, treating the flashing red signal as a stop sign ensures that all drivers act in a manner that prioritizes road safety and follows traffic regulations appropriately.