Research on Problem Behaviors Suggests That

Research on problem behaviors suggests that:

A) most delinquents are serious drug users.
B) risky behaviors cluster together in different ways for different adolescents.
C) the problem behaviors that adults disapprove of are considered by adolescents to be normative, not problematic.
D) risky behaviors are more likely to be noticed as clustering together in studies of children than in studies of adolescents.