Which Situation Below Best Depicts a Mid-Life Crisis

Which situation below best depicts a mid-life crisis?

A) A 22-year-old college graduate moves in with her parents because she cannot find employment.
B) The parents enroll their two toddlers in day care because two incomes are needed to meet the household's financial demands.
C) After the couple's daughter leaves for college, the husband quits his job and decides to "see the world."
D) A 70-year-old widower rejects the children's advice to move into an assisted living facility.