For the windows of your vehicle, which statement is correct?

• They must be coated with a material that blocks the outside view.
• They must not be coated with any material that blocks the inside as well as the outside view.
  Explanation:

  "For safety reasons, they windows of your vehicle must not be coated with any material that blocks the inside as well as the outside view. The vehicle's driver must be able to see out and others must be able to look in."
• They must be coated in a way that someone from outside cannot see inside of the car.
• None of these