Answer:
All of these issues and conflicts were made possible- and worse- by: c) the growing disparity in income in the United States.
Step-by-step explanation:
The industrialization in America brought changes into the United States. Dominant classes which own the factories, had the money and the power, provided work to the social class. The conditions for the labor people were bad and unfair. The salaries were low and these caused the disparity among social classes to grow. The disparity in income and in privileges.