How should you adjust your speed in adverse weather conditions?

Answer: B — Reduce speed to a reasonable level

In adverse weather conditions, it is crucial to reduce your speed to a reasonable level. This adjustment is necessary because poor weather—such as rain, snow, fog, or ice—can significantly affect visibility and road traction. By slowing down, you increase your ability to react to unforeseen circumstances, such as other vehicles losing control or road hazards. Maintaining the posted speed limit, especially in adverse weather, could be unsafe since these limits are typically set for ideal driving conditions. Similarly, speeding up in an attempt to avoid accidents can lead to greater risks, as higher speeds reduce control and stopping distance. Ignoring speed limits altogether is also unwise, since these limits are designed with general safety in mind. Overall, adjusting your speed according to the conditions you encounter allows for safer driving and helps prevent accidents.