When driving in fog, what type of headlights should you use?

Using low beam headlights when driving in fog is essential for safety and visibility. Fog creates a thick barrier that can scatter light, making high beam headlights ineffective and potentially blinding for the driver. High beams reflect off the water droplets in the fog, causing a glare that can impede your ability to see the road and other vehicles.

Low beam headlights, on the other hand, cast a shorter, wider beam of light that is oriented closer to the ground, allowing for better visibility without reflecting excessively off the fog. This makes it easier to see the road ahead while minimizing the likelihood of glare that can obscure vision.

While fog lights can enhance visibility in severe conditions, they are usually designed to be used in conjunction with low beams rather than as a standalone option. Driving without headlights, as indicated in one of the choices, would severely limit visibility and is not a safe practice under any circumstances. In conclusion, low beam headlights provide optimal visibility while reducing glare during foggy conditions, making them the safest choice for drivers.