During the nineteenth century, one-way political bosses gained voter support was by:
"Making improvements to the urban infrastructure and assisting immigrants with naturalization."
- This is because around the nineteenth century, the United States was just growing and expanding.
- At this period, only a few infrastructures were available. Thus, the citizens long to have infrastructures in their cities such as railroad, post office, etc.
- Also, immigrants want to change their status to citizens, hence they can benefit from the full welfare package meant for citizens.
Therefore, in this case, the correct answer is option C " Making improvements to the urban infrastructure and assisting immigrants with naturalization."
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