Which of the Following Is True Regarding Research on Couples

Which of the following is true regarding research on couples after the birth of the first child in developed countries?

A) Gender roles become more traditional and women are more likely to take an extended period of leave after the birth of a child.
B) Marital satisfaction declines more for men than women after the birth of a child because men become jealous of the new baby.
C) For couples who had a troubled marriage before the child was born,marital satisfaction increases after the baby arrives because it brings them closer together.
D) Marital satisfaction improves for all couples following the birth of the first child.