The Breadwinner/housewife Form of Family

The breadwinner/housewife form of family

A) is an aberration across time and cultures.
B) was preceded by an agrarian model in which all family members contributed to the economic well-being of the family.
C) only became the dominant form of family in the middle class; the poor could not afford it.
D) has been the historical norm and most common family structure across cultures.
E) all but d are true.