Which vehicle's position is incorrect when preparing for a left turn?

When preparing for a left turn, the correct positioning of vehicles is crucial for ensuring safety and order on the road. For a left turn, the vehicle should be positioned in the leftmost lane or close to the left edge of the roadway when it is safe to do so.

In this scenario, if vehicles 1 and 3 have incorrect positions—such as being too far to the right or in the wrong lane—they would not be appropriately set up to execute a left turn safely. Vehicle 1 might be located in the right lane and vehicle 3 might also not be aligning properly to make a left turn. This would create confusion and potential hazards as they attempt to make the turn.

By identifying that both vehicles have improper positioning, it is clear that they cannot execute a safe left turn, which is why the choice indicating that both Vehicle 1 and Vehicle 3 are incorrectly positioned is correct. Proper understanding of lane positioning during turns is critical for safe driving practices.