If you stop along the road at night:

  1. Turn off all your lights.
  2. Use your parking lights only.
  3. Use your headlights only.
  4. Turn on your emergency flashers and leave your low beams turned on. ✓

Answer: D. Turn on your emergency flashers and leave your low beams turned on.

Turn on your emergency flashers and leave your low beams turned on when you stop along the road at night.

Why this is the answer

The handbook says that when you park on an unlighted highway at night, you should leave your parking lights or low beam headlights on. It also says to turn on your emergency warning lights when your car is off the road or disabled, and if you have no warning lights, use your taillights. At night it adds interior lights. Putting those instructions together, the best choice is to have your emergency flashers working and your low beams on so the car is easy to see.

Why the other answers are wrong

Remember it

At night on the roadside, think flashers warn and low beams show.

Official handbook: Texas Driver Handbook (DL-7), Chapter 9: Some Special Driving Situations , p. 48

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.