You are driving in the left lane and want to move into the right lane. You should:

  1. Check your mirrors, signal, and look over your left shoulder for other vehicles before changing lanes.
  2. Check your mirrors, signal, and look over your right shoulder for other vehicles before changing lanes. ✓
  3. Check your mirrors, signal, and look over both shoulders for other vehicles before changing lanes.
  4. Check your mirrors, signal, and change lanes.

Answer: B. Check your mirrors, signal, and look over your right shoulder for other vehicles before changing lanes.

Before moving from the left lane into the right lane, check your mirrors, signal, and look over your right shoulder for other vehicles.

Why this is the answer

The handbook requires a signal any time you change lanes or overtake, so signaling comes before the move. It also tells you to check blind spots before you move out of your lane. When the lane you want is on your right, the blind spot you cannot see in the mirrors is the one over your right shoulder, so that is where you look before pulling over.

Why the other answers are wrong

Remember it

Moving right? Your right shoulder is the blind spot your mirrors miss, so glance there last before you move.

Official handbook: Florida Driver License Handbook (FLHSMV), 7. Driving Safety – Turning, p. 69

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.