What is the effect of alcohol on driving?

• A. Impairments in judgment, reaction time, and coordination; do not drive after drinking.
• B. Improves alertness.
• C. Only affects vision but not judgment.
• D. Has no effect if you are a skilled driver.

Answer: (A)

Alcohol slows brain processing and dulls the central nervous system, which directly reduces judgment, reaction time, and coordination. Because driving relies on quick, accurate decisions, fast responses to hazards, and precise motor control, these impairments make it much easier to miss dangers, react too slowly, or misjudge distances and speeds. That combination greatly increases crash risk, so the safest choice is not to drive after drinking.

Other ideas don’t fit this situation: alcohol does not make you more alert; it affects more than just vision—your thinking, perception, and movements are all affected; and having skill as a driver does not shield you from impairment—even small amounts can degrade driving abilities.