What should a driver do if they feel drowsy while driving?

Answer: C — Find a safe place to stop and rest

When a driver feels drowsy while driving, the most responsible and safest action is to find a safe place to stop and rest. Drowsiness significantly impairs a driver's ability to react quickly and make sound judgments, similar to the effects of alcohol. Stopping to rest allows the driver to regain alertness and ensure they can continue their journey safely. While options like switching routes, drinking coffee, or opening windows might provide temporary relief, they do not address the root cause of drowsiness. Switching routes can lead to further fatigue if the underlying tiredness is not resolved. Drinking coffee may offer a short-term boost in alertness, but it is not a substitute for proper rest and can vary in effectiveness. Opening windows for fresh air might help momentarily, but it is unlikely to significantly alleviate drowsiness. Prioritizing a break not only safeguards the driver but also promotes road safety for everyone.