Using the "Core Feature" of Abnormal Behavior in Identifying Mental

Using the "core feature" of abnormal behavior in identifying mental disorders, the occurrence of abnormal behavior would be defined as behavior that

A) makes daily life more difficult and which indicates a loss of control.
B) causes a person extreme personal discomfort and is socially nonconforming.
C) is illegal and\or persistently nonconforming.
D) is statistically different from the average of the general population.