Researchers Have Found All of the Following with Regard to Problem

Researchers have found all of the following with regard to problem behavior in adolescence, except:

A) adolescents often exhibit one specific problem, such as depression, without exhibiting any others.
B) adolescents may exhibit more than one problem within the same general category, such as depression and anxiety.
C) adolescents may exhibit both internalizing and externalizing problems, such as depression and delinquency.
D) adolescents with severe behavior problems are likely to have followed similar pathways to deviance, most typically with similar family problems.