When approaching a roundabout, you should always:

  1. Increase your speed.
  2. Maintain your speed.
  3. Come to a complete stop.
  4. Decrease your speed. ✓

Answer: D. Decrease your speed.

You should decrease your speed as you approach a roundabout.

Why this is the answer

The Texas handbook's roundabout steps begin with slowing down as you approach the intersection, then yielding to traffic already in the circle and entering when there is an acceptable gap. It also says to observe posted advisory speed signs. That makes reducing speed the proper approach; increasing or holding speed does not match the handbook's instruction. The handbook does not say to always come to a complete stop before entering.

Why the other answers are wrong

Remember it

Slow on approach, yield to circle traffic, enter when clear.

Official handbook: Texas Driver Handbook (DL-7), Chapter 9: Some Special Driving Situations , p. 50

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.