What is one thing a driver can do to ensure they are not driving under the influence?

Choosing to designate a sober driver or use a taxi/rideshare service is a proactive and responsible measure to ensure a driver does not operate a vehicle under the influence of alcohol or drugs. This option prioritizes safety by eliminating the risk associated with driving after consuming substances that impair judgment, reflexes, and overall driving ability.

Utilizing a designated driver or alternative transportation means that a sober individual ensures everyone gets home safely, reducing the likelihood of accidents, injuries, or legal repercussions that could result from impaired driving. This choice actively addresses the issue of driving under the influence by providing a practical solution to avoid impaired driving situations altogether.

Other options suggest ineffective or risky strategies. For example, the idea of having a few drinks and then driving highlights a severe misunderstanding of how alcohol affects a person's ability to operate a vehicle. Similarly, postponing driving until hangover symptoms appear does not guarantee one is ready to drive safely, as the effects of alcohol can linger well past the point of initial intoxication. Finally, believing that sleeping for a few hours will make one fit to drive ignores the fact that even after rest, impairments can still affect one's ability to drive safely. Thus, option A stands out as the most effective way to prevent driving under the influence.