What is the proper action when approaching a flashing RED traffic signal?
Answer: D — Stop only after checking for approaching traffic
When approaching a flashing RED traffic signal, it is important to come to a complete stop and then check for any approaching traffic. This is because a flashing RED light is treated as a stop sign and requires a full stop unlike a regular RED traffic signal. Therefore, options A, B, and C are incorrect as they suggest either proceeding when safe or only slowing down. It is important to follow the proper action to ensure the safety of yourself and others on the road.