Jill Who Is 10 Repeatedly Surfs the Internet Late at Night

Multiple Choice

Jill who is 10 repeatedly surfs the Internet late at night although her parents have forbidden her to do so. She waits until they are asleep and then sneaks onto the computer. She sends threatening messages to other girls in her class and has spread damaging rumors on the Internet about her classmates. When confronted about this behavior, Jill becomes hostile and destroys her stuffed animals. Which one of the following diagnoses best fits Jill's behaviors?

A) Childhood-onset conduct disorder
B) ADHD
C) Temper tantrums
D) Oppositional defiant disorder