Of the Following Couples,which Would Most Likely Report the Highest

Of the following couples,which would most likely report the highest level of marital satisfaction?

A) Mario and Ansuya have been married 20 years and have a daughter who is a junior in college.
B) Michelle, a lawyer, and Pierre, a banker, have been married a year and have no children.
C) Antonio and Maria own and manage a small grocery store with assistance from their 16-year-old sons.
D) Ling and Guan have been married eight years and have two children in elementary school.