The fourth one is the answer
The flair toothpaste uses the images of a neat dentist that recommends the toothpaste, and also uses the images of nice white people with incredible white teeth. That is the way they use to persuade readers and to create meaning. Other adds as the car ones present a clean and fast road with a family inside the car, enjoying a very nice holidays. So the way to persuade are kind of the same: show happy people with the product that they want to sell
A demand is like i want this done now and a request is like can you do this for me
Distract you from reading the book so you don’t get the full concept of the book
