As alcohol builds up in your blood, it:
- Slows down your reactions. ✓
- Makes you feel less confident.
- Begins to metabolize itself more quickly.
- Decreases the number of driving errors.
Answer: A. Slows down your reactions.
As alcohol builds up in your blood, it slows down your reactions.
Why this is the answer
The handbook says alcohol reduces the skills you need for safe driving, naming judgment, reaction, vision, and concentration. It states plainly that alcohol slows your reflexes and reaction time, makes you less alert, and makes it harder to judge distance, speed, and the movement of other vehicles. Since the question asks what happens as alcohol builds in your blood, the slowed reactions described in the handbook match that choice directly.
Why the other answers are wrong
- B. Makes you feel less confident. — Alcohol is described as affecting judgment first and making you less alert, not as making you feel less confident.
- C. Begins to metabolize itself more quickly. — The passage explains how alcohol is absorbed into the bloodstream and reaches the brain, but never says it speeds up its own breakdown.
- D. Decreases the number of driving errors. — The handbook says drinking raises your crash risk and gives you trouble judging speed and controlling the vehicle, so errors go up, not down.
Remember it
Link alcohol to the skills it takes away: judgment first, then reflexes and reaction time.