Read the excerpt below and answer the following question.
"What tells in holdin' your grip on your district is common sense and study of human nature. . . . If a family is burned out I don't ask whether they are Republicans or Democrats, and I don't refer them to the Charity Organization Society, which would investigate their past history and fill out a folder. I just go to the fire, buy them clothes, get them a place to live, and get the father a job. . . . The consequence is that the family and all their relations vote for me."
— George Washington Plunkitt, Tammany Hall ward boss, *Plunkitt of Tammany Hall*, 1905
Which of the following developments in late nineteenth-century American cities most directly contributed to the success of the political methods described in the excerpt?
- AThe dominance of the Populist Party in urban industrial centers, which organized local relief systems
- The rapid growth of immigrant populations facing economic hardship without a public safety netAnswer
- CThe passage of federal legislation that funded and regulated municipal social welfare departments
- DThe shift of manufacturing jobs from centralized urban factories to rural, household-based production