True or False: When driving in fog, a driver should use high-beam headlights to increase visibility.

Using high-beam headlights in fog is not advised because the light can reflect off the water droplets in the fog, causing a glare that actually reduces visibility. Instead, low-beam headlights are recommended because they provide adequate illumination for the road ahead without causing excessive reflection. This allows drivers to see the road more clearly and be more aware of other vehicles and obstacles.

In conditions of fog, it’s essential for drivers to prioritize safety by maintaining visibility without impairing their own or others' ability to see. Using low beams helps achieve this balance. Thus, the assertion that high-beam headlights should be used in fog is false.