What should you do if you encounter fog while driving?

Answer: B — Reduce speed and use low beam headlights

When driving in fog, it is crucial to prioritize visibility and safety. Utilizing low beam headlights is the recommended approach because they illuminate the road directly in front of you without reflecting off the fog and creating glare, which can reduce your visibility even further. High beam headlights, on the other hand, tend to reflect off moisture in the fog and can make it difficult to see, effectively worsening the driving conditions. Additionally, reducing speed is essential when navigating through fog. Lower speeds provide you with more time to respond to obstacles and sudden changes in your environment, enhancing safety for both you and other road users. While pulling over can be a safe option if visibility becomes extremely poor, it is generally advisable to keep moving cautiously at a reduced speed and with your low beam headlights on as long as it is safe to do so. This ensures that you remain aware of your surroundings and are not in danger of being struck by other vehicles that may not see you if you simply stop in the roadway.