How does the character of Sara Smolinski represent Anzia Yerzierska and thousands of other similar immigrants in America?

a young, single, working-class woman

Explanation:

In the novel Bread Givers, that was written by Jewish-American author Anzia Yezierska, the author tells the story of a immigrant Jewish girl living and growing up in the Lower East Side of New York City. It seems that in the story the character of Sara Smolinski is represented as a young, single, working-class woman, just like Anzia Yerzierska and thousands of other similar immigrants in America