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:

  "They must not be coated with any material that blocks the inside as well as the outside view. It's important for safety reasons that both the driver can see out and others can see in."
• They must be coated in a way that someone from outside cannot see inside of the car.
• None of these