Taking drugs along with alcohol:

  1. Increases the risk of causing a crash. ✓
  2. Is no more dangerous than consuming alcohol by itself.
  3. Lessens the effect of alcohol on your ability to drive.
  4. Has no effect on your general driving ability.

Answer: A. Increases the risk of causing a crash.

Taking drugs together with alcohol increases the risk of causing a crash.

Why this is the answer

The handbook says people often do not realize that drugs or alcohol affect the mental and physical skills needed to drive and react. It states that using more than one drug at the same time is more dangerous, especially when alcohol is involved, and that alcohol can hide the effects of other drugs. That combination raises the chance of poor decisions and slower reactions. So mixing drugs with alcohol adds danger rather than cancelling it out, which supports the higher crash risk.

Why the other answers are wrong

Remember it

Think of alcohol as adding to a drug's effect, not cancelling it.

Official handbook: Texas Driver Handbook (DL-7), Chapter 9: Some Special Driving Situations , p. 55

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.