When it comes to blind spots, which of the following is NOT true?

1. Neck or shoulder stiffness can prevent you from being able to see blind spots
2. No matter what kind of car you have, or how well adjusted your mirrors are, you will always have blind spots
3. The best way to compensate for blind spots is to turn your head and glance over each shoulder before making a lane change
4. The larger the vehicle, the smaller the blind spots