Frank Was Tested by the School Psychologist and Diagnosed with Attention

Frank was tested by the school psychologist and diagnosed with Attention Deficit/Hyperactivity Disorder (ADD/ADHD) .The test results have been explained to his parents.His parents are curious as to brain involvement and ADD/ADHD.The school psychologist informs them that

A) some research indicates that ADD/ADHD is related to a delay in neural development.
B) there is little research to link ADD/ADHD with specific brain involvement.
C) if there is a lag in neural functioning,it will go away with age.
D) ADD/ADHD would be considered a developmental delay.