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

Answer: B — Low-beam headlights

Using low-beam headlights when driving in fog is important because they provide adequate illumination without causing glare. When you use high-beam headlights in foggy conditions, the light can reflect off the water droplets in the air, creating a wall of light that actually reduces visibility. Low-beam headlights are designed to cast light down onto the road, helping drivers see the roadway clearly without causing excessive glare that could impair both their vision and that of oncoming vehicles. This improves safety during foggy conditions, allowing the driver to see better while also helping others see the vehicle on the road. While hazard lights are used to alert other drivers of a stopped or slow-moving vehicle, they should not be used as a replacement for headlights while driving. Fog lights, when available, are specifically designed for use in foggy conditions, but they are typically used in conjunction with low-beam headlights, not as a standalone solution.