Research on the Association of Premarital Sex with Later Outcomes

Research on the association of premarital sex with later outcomes has found that

A) Of those who had premarital sex only with their eventual partner, most said the effect on the marriage was favorable or neutral.
B) Those who had premarital sex with others had lower divorce rates than those who did not.
C) Those who had premarital sex were less likely to have affairs once they got married.
D) All of the above.
E) Only (a) and (b) above.