Which Is True with Regard to Psychological "Health" During Adolescence

Which is true with regard to psychological "health" during adolescence?

A) Most adolescents suffer at some point from some sort of significant psychological disturbance.
B) Few adolescents who are psychologically disturbed were maladjusted before they reached puberty.
C) Adolescence is a time of heightened vulnerability for some forms of psychological disorders.
D) Adolescents are far more likely than adults to experience some sort of psychological disturbance.