The answer is The Taking of any drug in a manner that can cause Psychological or physical dependence
That's when we become an addict. Drug abuse is a serious problem that affect almost every community. Many resulted in death. Often time, the victims of drug abuse have a deep underlying unsatisfaction in some areas of their live and do it to relief the unsatisfaction
Being physically fit makes you happier. The more happy you are, the better interaction you will have.
You should eliminate empty calories from your diet.
It would be C because he's doing a healthy diet unlike the others