Final answer:
Teenagers abuse alcohol the most.
Step-by-step explanation:
The conclusion that correctly describes the use of these drugs by teenagers is that teenagers abuse alcohol the most. Alcohol is consistently the most commonly abused substance among teenagers. According to surveys, the National Institute on Alcohol Abuse and Alcoholism reports that more than half of high school seniors have consumed alcohol and approximately 1 in 5 teenagers engage in binge drinking.
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