Final answer:
Teenagers abuse alcohol the most.
Step-by-step explanation:
The correct conclusion regarding drug abuse by teenagers is that teenagers abuse alcohol the most. While it is true that some teenagers may abuse marijuana, cigarettes, or heroin, alcohol remains the most commonly abused substance among teenagers.
According to the National Institute on Drug Abuse (NIDA), alcohol is the most widely used substance among teenagers, with about one in five teenagers reporting recent alcohol use. This can have significant negative effects on their physical and mental health, as well as their academic performance and relationships.
It is important for teenagers to be educated about the risks and consequences of alcohol abuse and for parents, schools, and communities to provide support and resources to prevent and address teenage alcohol abuse.
Learn more about Teenage drug abuse