Answer:
Advertisers don't just shove things into ads. They study what people like and then try to design an approach that will appeal to their target audience. When it comes to what goes into an ad, advertisers have a long list of techniques to choose from. They can decide whether you might like a funny ad better than a touching one, or whether it might work best to get you to see their product as the solution to something you fear (acne or body odor, for example).
