Which of the Following Statements About Parent-Adolescent Communication About Sex

Which of the following statements about parent-adolescent communication about sex is not true?

A) Adolescents are more receptive to having one "big talk" about sex than having multiple conversations over a period of time.
B) Sexually active adolescents underestimate their parents' disapproval of sexual activity.
C) Parents assume that if they disapprove of sexual activity, their adolescent is not likely to be sexually active.
D) There seems to be a gap between what parents say they have discussed with their adolescent child and what adolescents say they have discussed with their parents.