Which of the Following Statements Is True Regarding the Relationship

Multiple Choice

Which of the following statements is true regarding the relationship between abnormal behavior and mental illness?

A) An individual who exhibits abnormal behavior may not have a mental illness.
B) An individual who exhibits abnormal behavior that persists for at least 6 months has a mental illness.
C) Most of the mental illnesses listed in DSM-IV-TR are defined by isolated abnormal behaviors.
D) all of the above