Which of the following statements about adolescence is true?

a. All of the choices are correct
b. Reaching adult body size is part of pubertal development
c. When asked in a survey context, teens consistently underestimate the likelihood of risky outcomes
d. Adolescents are likely to report feeling very unhappy more often than their parents, but report feeling very happy less often than their parents
e. Adolescents take more risks when they are alone than when they are with peers