Final answer:
Feminism reflected a change in the nature of the family by challenging traditional gender roles. During World War II, women took on the role of breadwinners alongside their domestic responsibilities, and these changes continued after the war.
Step-by-step explanation:
The role of feminism reflected not only the participation of women in social crusades, but also a basic change in the nature of the family. During World War II, women had to assume the role of breadwinner alongside their domestic role to stabilize society. After the war, many women did not want to give up their wage-earning positions, leading to changes in the family structure.