A "Typical" Highschooler Takes the "Virginity Pledge

A "typical" highschooler takes the "virginity pledge." In the future,that highschooler will:

A) be less likely than average to have a sexually transmitted infection.
B) be less likely than average to be involved in a premarital pregnancy.
C) probably engage in premarital sex.
D) be more likely than average to use contraception if sexual activity occurs.
E) all of the above