Design a two-sentence public-health slogan that accurately communicates the continuum nature of alcohol impairment and the practical recommendation for driving decisions.

• A. If your BAC is under 0.08% you are always safe to drive; only avoid driving when you feel extremely intoxicated, and limit drinking to small amounts to maintain normal function.
• B. Rely on your sense of sobriety because people universally know their limits; most accidents occur when people misjudge others, not themselves, and legal numbers are arbitrary.
• C. Drink as much as you want but wait until you fall asleep before attempting to drive; sleeping off alcohol guarantees safety by reducing BAC to zero overnight.
• D. Alcohol’s effects increase gradually with BAC—there’s no sudden switch from ‘safe’ to ‘unsafe’—so if you’ve been drinking at all, choose not to drive and use a sober ride to protect yourself and others.

Answer: (D)