Why is it important to slow down and use caution when approaching a flashing yellow traffic signal?

Answer: D — It warns of possible hazards ahead, requiring attentiveness

When approaching a flashing yellow traffic signal, it is crucial to slow down and use caution because it warns drivers of possible hazards ahead, requiring attentiveness. A flashing yellow light does not mean to speed up or clear the intersection quickly (Choice A) as that can lead to accidents due to the lack of cautiousness. It also does not indicate that pedestrians have the right-of-way (Choice B), as pedestrians usually have the right-of-way at designated crosswalks or when the 'walk' signal is displayed. While stopping and carefully assessing traffic flow (Choice C) may be necessary at a stop sign or a red light, a flashing yellow light is a precautionary signal to proceed with caution, not a signal to stop completely.