All three authors of the Federalist papers used the name

James madison, alexander hamilton, john jay

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.