Which statement about alcohol and driving safety is accurate?

• A. It only affects driving when the BAC is above 0.08.
• B. It never affects driving safety.
• C. A single drink can impair driving safety.
• D. It is irrelevant to driving performance.

Answer: (C)

Alcohol slows your thinking and coordination, so driving safety can be affected even after a small amount. A single drink can reduce reaction time, impair judgment, dull concentration, and weaken coordination, which means you’re less able to respond to hazards and judge gaps in traffic. The fact that impairment can begin below the legal limit explains why this statement is the most accurate—driving safely isn’t guaranteed just because you’re under 0.08 BAC, and even one drink can increase risk. The other ideas aren’t correct because alcohol does affect driving safety, and impairment isn’t confined to higher BACs or to being irrelevant to driving performance.