What is the impact of poor visibility on vehicle operation?

The correct choice highlights the significant safety risks associated with poor visibility while operating a vehicle. When visibility is reduced—due to factors such as fog, rain, snow, or darkness—drivers are less able to see hazards, other vehicles, road signs, and even the road itself. This lack of clear sight increases the likelihood of accidents, as drivers may not react in time to avoid potential dangers.

Slower driving speeds under such conditions are essential because they allow more time for the driver to respond to unexpected obstacles or changes in traffic. Reducing speed helps increase the stopping distance, providing the driver with a better chance of safely navigating through areas of low visibility.

In contrast, the other options imply that poor visibility either enhances confidence, permits unrestricted driving, or doesn't affect experienced drivers, which contradicts basic driving safety principles. It is essential to recognize that visibility directly influences driving behavior and safety, making cautious and attentive driving imperative during such conditions.