They could workout to become stronger, look/feel, have better posture, and have more self-confidence. One way how I have become more confident about talking to people is just doing it. I'm an introvert that hates talking, but, by forcing myself to talk to people more I have noticed that I have become more confident about talking to random people. If your trying to talk to just one person you could learn more about them and what they like, and learn about what they like. So next time you see them you have something to talk about that they will also enjoy talking about.
Proteins for building muscle and carbs for body fuel. Need to drink plenty of water to stay hydrated and to flush toxins.
The best option would be A.
If he attends an outpatient program within the community that supports him and is a reasonable cost then he will be able to have the support of his parents and the community, it won't be too much of a strain financially for his parents and he will be away from any temptation.
