Final answer:
When driving in fog with reduced visibility, use your headlights, adjust your speed, and increase your following distance. If visibility becomes extremely poor, consider pulling over.
Step-by-step explanation:
When driving in fog with reduced visibility, it is important to use your headlights and adjust your speed accordingly. Turning on your headlights will not only help you see the road better but also make your vehicle more visible to others. It is also recommended to use low-beam headlights rather than high-beam headlights as high-beam headlights can cause glare and make it harder for you to see.
Additionally, it is crucial to decrease your speed and increase your following distance, as fog can make it difficult to judge distances accurately. This will give you more time to react to any potential hazards on the road. If the visibility becomes extremely poor and you are unable to see clearly, it may be necessary to pull over and wait until the fog dissipates.