Which of the Following Is Most Illustrative of the "Skilled

Which of the following is most illustrative of the "skilled diplomacy" used by many middle-aged couples to maintain the stability of their relationship?

A) Mr. and Mrs. Shin agree that their marriage cannot withstand conflict, therefore disagreements or differences of opinion are never voiced.
B) Mr. and Mrs. MacGregor rely on the wisdom, humour, and the practical advice of their religious advisor when a problem arises in their marriage.
C) If a problem occurs in the Mutta marriage, Mrs. Mutta first confronts Mr. Mutta with the issue and then she works to bring peace to their relationship.
D) When Mr. and Mrs. Smith are having a marital conflict, Mrs. Smith asks one of their children to discuss the issue with Mr. Smith.