What type of headlights should be used in heavy fog, rain, or snow?

Answer: B — Low beams headlights

Using low beam headlights in heavy fog, rain, or snow is essential for maintaining visibility while also minimizing glare that can reflect back to the driver. Low beam headlights are specifically designed to cast a short, downward light that helps illuminate the road directly in front of a vehicle without creating excessive brightness that could reflect off moisture and create a blinding effect. This makes it easier for drivers to see the road and for other vehicles to see them. In contrast, high beam headlights produce a much stronger light that can cause significant glare in adverse weather conditions, making it difficult for drivers to see anything clearly. Fog lights, while useful for very specific conditions, are typically used in conjunction with low beams rather than as a standalone option. Parking lights, on the other hand, do not provide adequate illumination for driving and are primarily designed for stationary visibility. Therefore, low beam headlights are the preferred choice in these weather conditions for both safety and visibility.