Final answer:
The safest option when tired and needing to drive a long distance is to sleep until refreshed before driving to ensure optimal alertness and driving performance.
Step-by-step explanation:
If you are tired after a day's work and need to drive a long distance, the best option would be to sleep until refreshed before driving. Driving while fatigued can seriously impair your reaction times, judgment, and ability to drive safely, similar to the effects of alcohol. Studies have shown that sleep deprivation significantly affects driving ability, leading to an increased risk of accidents. Instead of relying on temporary solutions such as caffeine or the stimulus of an open window, prioritizing adequate sleep ensures that your alertness and driving performance are optimized for a long journey. Additionally, planning ahead to allow time for rest before driving long distances can contribute to a safer trip.