How Do Researchers Know That the Midlife Crisis Is Not

How do researchers know that the midlife crisis is not universal?

A) The midlife crisis is only seen in minority status individuals.
B) Most adults of all ages tend to view middle adulthood as a positive time in life with increasing life satisfaction, self-esteem, and well-being.
C) Only males experience a true midlife crisis.
D) Only females experience a true midlife crisis.