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Because there were numerous people from their native fatherlands residing there, There were particular rationalizations why cities developed so suddenly in the United States in the late 1800s. One cause had to do with immigration. Many immigrants were coming to the United States during this time.

Explanation:

B

Explanation:

Because more immigrants started to come.

its c not d   tell me if that´s correct

1. explain aspects of the democratic process as it was developed in ancient athens

2. trace the roots of the americans political process to ancient athens

3. explain the relationship of citizens to the political process