What Is the Relationship Between Having Children and Marital Quality

What is the relationship between having children and marital quality?

A) Mothers score higher on the social cohesion scale than do women without children.
B) Couples who do not yet have children, or those whose children have grown and left, have higher marital satisfaction than those with children currently in the home.
C) Presence of preschool children increases marital stability, at least temporarily.
D) All of the above.
E) Only (b) and (c) above.