What action should be taken to avoid being blinded by oncoming traffic at night?

Answer: C — Look at the edge of the road

To avoid being blinded by oncoming traffic at night, the recommended action is to look at the edge of the road. This technique helps to maintain your focus and keep your vision adjusted to the darker surroundings without being overwhelmed by the bright glare of oncoming headlights. By directing your gaze towards the side of the road, you enable your eyes to better perceive both the road and potential hazards while minimizing the impact of the bright lights. Looking straight ahead can lead to momentary blindness and a reduced ability to judge obstacles or curves in the road. Focusing only on the headlights may cause disorientation and hinder your ability to see other important aspects of the environment, such as signs or vehicles that may be merging onto the road. Closing one eye modifies your depth perception and does not effectively counteract the blinding effect caused by bright lights. Therefore, looking at the edge of the road is the safest and most effective strategy for navigating at night when faced with oncoming headlights.