The most effective thing you can do to reduce your risk of being injured or killed in a traffic crash is to:

  1. Wear your seat belt. ✓
  2. Limit your driving to weekdays.
  3. Stay in the right lane on multilane highways.
  4. Limit your driving to hours between 3:00 p.m. and 6:00 p.m.

Answer: A. Wear your seat belt.

Wear your seat belt; the handbook says safety belts help keep you from being thrown from your car and in better control, which lowers your chance of being killed in a crash.

Why this is the answer

The handbook lists what safety belts do in a crash: they keep you from being thrown out, keep you from hitting the dashboard too hard, and help you stay in control. It also states that your chances of being killed are five times greater if you are thrown from your car. Among the choices given, that is the only action tied in the passages to reduced injury or death risk. The other choices are not described as crash-survival measures.

Why the other answers are wrong

Remember it

Buckle first: a belt keeps you inside the car and in control, which is the protection the handbook lists.

Official handbook: Texas Driver Handbook (DL-7), Chapter 13: Bicycle Laws and Safety , p. 64

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.