Which of the Following Couples Would Most Likely Report the Lowest

Which of the following couples would most likely report the lowest level of marital satisfaction?

A) Paula and Steve have been married 21 years and have three children who are through college and establishing themselves in professional careers.
B) Anthony and Anita have been married for three years and are still considering parenthood.
C) Tina and Saul have been married ten years and have two children who are nine and seven years old.
D) Rosario and Juan are both 65 years and have just retired from the grocery store they have owned and managed for 40 years.