Which of the following statements about life in the United States during the Gilded Age is NOT correct?

A.
The formation of corporations led to high profits for industrial capitalists.

B.
The formation of labor unions allowed most common workers to become rich and prosperous.

C.
Widespread corruption allowed political machines to control all political activity in major urban centers.

D.
Widespread immigration resulted in the overpopulation of urban areas, thus leading to rising poverty levels.