What should you do if you encounter adverse weather conditions while driving?

Answer: C — Reduce your speed and increase following distance.

When encountering adverse weather conditions such as rain, snow, fog, or ice, it is crucial to reduce your speed and increase your following distance. This approach allows for better vehicle control and gives you more time to react to potential hazards, such as reduced visibility or slippery road surfaces. Reducing your speed helps to maintain traction, especially in slippery conditions where faster speeds can lead to hydroplaning or losing grip on the road. By increasing your following distance, you create a buffer zone between your vehicle and the one in front of you, which reduces the risk of collisions. This distance is especially important in adverse weather when braking distances are significantly increased. Maintaining a regular speed or accelerating is dangerous, as it may not account for the increased stopping distance required in difficult conditions. Stopping immediately could also be hazardous, depending on the situation, as it may lead to blockage of traffic or create additional risks if not executed safely. Thus, adjusting speed and following distance is the most effective and safest strategy when faced with adverse weather conditions.