Who received benefits from settlement houses in the late 1800s and early 1900s?
a) young women from wealthy families
b) immigrants who had recently come to america
c) reformers like jacob riis and lincoln steffens
d) members of the middle-class people who needed a place to live

I think the answer is C.

A hallmark of the Progressive Era in the United States is the Settlement houses, benefited so the answer is B. immigrants who had recently come to America. 

These houses existed primarily in urban areas where immigrants tended to initially congregate. Middle-class or wealthy individuals would live among the generally poorer immigrants in hopes of teaching them English, American customs, and helping to alleviate their impoverished status.