Those Who Are Most Inclined to Become Sexually Active Early

Those who are most inclined to become sexually active early in adolescence are

A) adolescents from low-income rather than middle-class families
B) good students, who are more likely than poor students to be trusted by parents
C) teenagers whose friends and siblings are sexually active
D) adolescents from low-income rather than middle-class families and teenagers whose friends and siblings are sexually active
E) all of these