A pattern of defiance and hostility toward adult authority lasting at least six months is called

A) conduct disorder.
B) oppositional defiant disorder.
C) bipolar disorder.
D) fear of leaving one's mother.

Oppositional defiant disorder is characterized by a pattern of defiant and hostile behavior toward adult authority that lasts for at least six months. The behavior includes frequently losing one's temper, arguing with adults, deliberately annoying others, blaming others for one's own mistakes, being easily annoyed or angered, and being spiteful or vindictive. Conduct disorder is a more severe and persistent form of oppositional defiant disorder that includes engaging in destructive or violent behavior toward people, animals, or property. Bipolar disorder involves episodes of mania and depression, and fear of leaving one's mother is not a recognized disorder.