Which of the Following Is Not a True Statement About

Which of the following is not a true statement about the relationship between stuttering and intellectual abilities:

A) the average intelligence levels of PWS are not clinically different from that of NFP
B) parents' intellectual abilities strongly influence the incidence of stuttering in their children
C) stuttering is common in some sub-groups of children whose intelligence is below average
D) stuttering is found even in individuals of superior intelligence level