Which of the Following Is Not True with Respect to Attention

Which of the following is not true with respect to attention deficit/hyperactivity disorder (ADHD) ?

A) Girls with ADHD are less likely to demonstrate aggressive behaviours, as compared to boys with ADHD.
B) Somewhere between approximately one third and one half of children diagnosed with ADHD will have symptoms that persist into their adult life.
C) Underlying differences in neurotransmitter function for those with ADHD are well understood by researchers.
D) Concordance rates for ADHD are higher in identical twins, as compared to fraternal.
E) All of these response options are true.