The Parent of a 6-Year-Old Says, "My Child Is in Constant

The parent of a 6-year-old says, "My child is in constant motion and talks all the time. My child isn't interested in toys but is out of bed every morning before me." The child's behaviour is most consistent with diagnostic criteria for which of the following?

A) Communication disorder
B) Stereotypic movement disorder
C) Intellectual development disorder
D) Attention deficit-hyperactivity disorder