Answer:
D) Karl Marx's collapse of capitalism
Explanation:
Karl Marx believed that the rich people (bourgeoisie) the benefited from the work of the working class people, he called them the proletariat. He stated that the abuses committed by the rich would eventually make the working class people rebel against the rich and dominant upper class. According to him, the rich only cared about money and didn't care about the welfare of the lower working classes.