Question

Which of the following statements about attention-deficit hyperactivity disorder (ADHD) is true?
A) All children with ADHD are hyperactive.
B) Fraternal twins are more likely than identical twins to have ADHD.
C) Boys are diagnosed with ADHD about four times as often as girls.
D) For a child to be diagnosed with ADHD, symptoms must appear before age 5.

Answer

This answer is hidden. It contains 1 characters.