Final answer:
When approaching an oncoming vehicle with bright headlights, you should look down and to the left to avoid being blinded and to maintain visibility of the road using peripheral vision.
Step-by-step explanation:
If you are driving towards an oncoming vehicle with bright headlights, the safest option is to look down and to the left. This technique helps avoid being blinded by the bright lights while still allowing you to see the road and maintain your lane using the white lines or the road's edge as a guide. It's critical not to look directly into the headlights as this can impair your night vision, making it more difficult to see after the other vehicle has passed. Instead, by keeping your gaze down and to the side, you minimize the risk of temporary vision impairment or distraction.