【单选题】Once it was possible to define male and female roles easily by the division of labor. Men worked outside the home and earned the income to support their families, while women cooked the meals and took...
A.
Women usually worked outside the home for wages.
B.
Men and women's roles were easily exchanged in the past.
C.
Men's roles at home were more firmly fixed than women's.
D.
Men and women's roles were usually quite separated in the past.