What should be done if weather conditions worsen while driving?

Answer: C — Slow down and increase following distance.

When weather conditions deteriorate, such as during heavy rain, snow, or fog, it's critical to adjust your driving behavior to enhance safety. Slowing down allows for better control of the vehicle as visibility and traction may be compromised. Reducing speed gives you more time to react to any sudden changes in the road or traffic conditions, which is crucial in poor weather. Increasing the following distance is equally important in such situations. This added distance gives you a buffer zone, allowing for more time to stop safely if needed. In adverse weather, stopping distances can increase significantly due to slick roads or reduced visibility, so maintaining a greater distance from the vehicle in front helps reduce the risk of collision. Choosing to speed up, maintain the same speed, or turning off headlights would be dangerous in worsening weather. Speeding can lead to losing control and increasing the likelihood of accidents, while maintaining speed may not provide adequate reaction time in hazardous conditions. Turning off headlights is counterproductive, especially in low visibility, as functioning headlights help other drivers see you and improve your ability to see the road ahead.