Final answer:
In fog, use low-beam headlights or fog lights to avoid glare and increase visibility, drive at reduced speeds, and maintain a greater following distance.
Step-by-step explanation:
When driving in fog, it's best to use your vehicle's low-beam headlights or fog lights if available. High-beam headlights can cause light to be scattered by the water droplets in the fog, leading to a glare that can make it more difficult to see. Fog lights are designed to illuminate the road with a wide, bar-shaped beam that is aimed lower than the standard beam, helping to avoid the glare that can be encountered with regular high-beam headlights.
Remember that fog can significantly reduce visibility and perception of distance, so it is also crucial to drive at reduced speeds and maintain extra distance between vehicles. Always ensure your headlights and fog lights are functioning correctly and use them even in light fog conditions to increase your visibility to other drivers.