In order to prevent drug abuse a combination of strategies might be very helpful. As there are more than one reason for a person to become a substance abuser there also are many ways to prevent it. First of all, there should be family support and good communication so there should not be barriers. And if the problem is already present the worst thing to do is to refuse it and pretend it is not happening because, in that way, it is impossible to help a person. On the other hand, it is importan to avoid negotiation, rules should be strict not to let a person to be tempted or find an easy way out. Good decisions should be made within a family and with professional help so everybody is aware and all members could go in the same direction. Last but not least, making a plan , an action plan wold be very wise so everybody knows what to do and could collaborate in the process.
The answer is A because drug tolerance makes it so you have to take more and more drugs to get the effect you want. Meaning you are more likely to do too much to get your high and overdose.
