There are obviously A LOT of them. Like how your brain is slowly deteriorating, which is scary and dangerous. I can't cover everything but I have a website link you could visit that talks about this subject
https://www.drugabuse.gov/publications/research-reports/heroin/what-are-long-term-effects-heroin-use
The answer would be D) All of the above because when it comes to peer pressure, it can make u sad and discouraged to do things u usually do, could lead to bad conduct such as: smoking, stealing or even being drunk, and this can lead to questionable friendships because when a friend makes u do something u don't want to do, u may think to yourself, is this person really my friend and does he/she consider me equal to them and not just a pawn.
Hope this helps.
Doing anything else, I guess
The one that makes the most since is b. Hope this helps some !
Vitamin a
vitamin d
vitamin e
vitamin k