C adults, media persuades youth into peer pressure. So that rules out those two. And hormones drive adolescents crazy. The answer is c.
The correct answer would be A. to avoid unhealthy products.
The question asks which is the best health reason to learn about advertising techniques therefore this answer is the correct one. If you know how advertising works and all the tricks and tactics employed then you will know which products to avoid and which ones are actually beneficial and good for your health.
Probably spreading depends on the context you probably should add
It typically takes around 12 years of schooling
Kindness, ability to listen, and compassion.