The correct option is B. Immigrants support political machines because they provide jobs.
Social services and housing would be provided by machines for low-income immigrants who were unable to meet their own needs.
What was the primary purpose of political machines?
Although a political machine's main objective is to maintain its own power rather than to provide effective government, machines have been instrumental in restructuring local governments to centralize authority, enhancing facilities and services, assisting in the assimilation of immigrant groups, and fostering the expansion of business.
Due to their practice of providing immigrants with housing and employment in exchange for their support, political machines were able to achieve great success. Moreover, if they were considering running for reelection, they might solicit the assistance of the newly wealthy immigrants by encouraging them to cast ballots and support them during campaigns.
Thus, The right response is B: Because immigrants create jobs, they fund political machinery.