I believe the answer is a.
I believe it is called aerobic fitness
Answer:
Have you ever found yourself doing a dance everyone's doing? Or posting new hashtags to fit it. All of that is you being influenced by the media. If you are wearing clothes everyone else is wearing that's a sign. Many people just want to fit in. Since younger people's brains are not fully developed that are looking up to those social media icons. That's why posting things doesn't just affect you it also affects other people.
A factor that helps teens avoid drugs and alcohol is to find activities or hobbies to do instead of drugs or drinking.