There Are Seven Proximate Determinants of Fertility as Developed by John

There are seven proximate determinants of fertility as developed by John Bongaarts. Which four are referred to as the primary determinants?

A) marriage, contraception, sterility, and postpartum infecundability
B) marriage, contraception, postpartum infecundability, and abortion
C) contraception, postpartum infecundability, conception, intrauterine mortality
D) contraception, postpartum infecundability, intrauterine mortality, and permanent sterility
E) marriage, abortion, divorce, and mortality