Answer:
B: They mostly occurred in areas with mild climates.
Explanation:
Due to the mild climates if the water was available, and the soil was fertile, they found a place where they can stay and live.
The number one thing that helped spread the belief was the population growth. America need more room for more immigrants.
The wages would usually be cut down since there was a monopoly established and there was no competition so they didn't have anywhere to go.
Upton Sinclair, Frank Norris and Ida Tarbell made their greatest contributions to the Progressive movement by (4) publishing books and articles to expose the problems of society. Upton Sinclair wrote a book which showed the dangerous and unsanitary lives workers of the Meatpacking District went through on a daily basis, Frank Norris exposed the struggle railroad workers go through with their bosses and the unfairness of the railroad workers life in California and Ida Tarbell wrote about the manipulative men behind the oil trade.
