The parents of a 7-year-old child report that their child has "mood swings" which consist of the child suddenly becoming irritable, angry and throwing tantrums. When asked what precipitates these episodes, they reply, "When we tell him 'no' or he does not get his way." Based on this information, which of the following would be the most likely preliminary diagnosis?
A. Bipolar disorder
B. Conduct disorder
C. Major depressive disorder
D. Oppositional defiant disorder (ODD)
E. Attention-deficit hyperactivity disorder (ADHD)