Multiple Choice
Which statement about attention deficit hyperactivity disorder (ADHD) is true?
A) The problem is more common among girls whose fathers also had the disorder.
B) By the time a person with ADHD reaches adulthood, all symptoms have resolved.
C) It is a complex disorder caused by gene variants along with environmental contributions.
D) Symptoms of the disorder are ameliorated when the person sleeps more soundly as a result of pharmacologic intervention.
Correct Answer:

Verified
Correct Answer:
Verified
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