What action should be taken if driving in foggy conditions?

Using low beams while driving in foggy conditions is the appropriate action because high beams can actually worsen visibility. This is due to the way fog reflects light; high beams illuminate the water droplets in the fog and create a glare, making it more difficult for the driver to see. Low beams, on the other hand, provide a more focused and less intense light that can penetrate the fog better. They illuminate the road immediately in front of the vehicle and help improve visibility without contributing to glare.

Driving at the speed limit regardless of visibility can be dangerous, as it does not account for the reduced visibility that fog brings. It's crucial to adjust speed based on current driving conditions. Similarly, pulling over immediately may not always be practical or safe, as it could create additional hazards on the road. Instead, the best approach is to maintain control of the vehicle while ensuring adequate visibility with low beams.