Which of the Following Illustrates the Hierarchical Nature of the Classification

Multiple Choice

Which of the following illustrates the hierarchical nature of the classification system for maladaptive behaviors?

A) Delusions and hallucinations are key symptoms of schizophrenia.
B) Anxiety and depression are common symptoms in many disorders.
C) Mental retardation and personality disorders are diagnosed on Axis II of DSM.
D) A manic episode is a subdivision of bipolar disorders, which in turn is a subgroup of mood disorders.