When driving in fog, you should use your __________ headlights.

Using low beam headlights when driving in fog is essential for maintaining visibility and safety. Low beam headlights cast light down onto the road, which minimizes the amount of light that reflects off the fog or moisture in the air. When high beam headlights are used, they can create a blinding effect, as the light reflects off the fog and can obscure visibility rather than improve it.

Fog lights can also be useful in fog conditions as they are designed to illuminate the road immediately in front of the vehicle without reflecting off the fog. However, if fog lights are not available, low beams are the best alternative for safer driving in such conditions. Choosing low beam headlights helps ensure that drivers can see the road ahead while not overwhelming their own or other drivers' visibility.