How Has Marriage Changed in Recent Decades

How has marriage changed in recent decades?

A) Educated Americans are marrying at an older age and having fewer children, but having them somewhat sooner.
B) Educated American women, in particular, are waiting longer to marry.
C) Educated Americans are marrying at an older age but having similar numbers of children as their parents.
D) Educated American women are having fewer children at a somewhat sooner age than their mothers.