One factor contributing to the decline of both the Roman Empire and the Han Dynasty of China was-

A) the conversion of the population to a monotheistic religion

B) social unrest created by an emerging middle class

C) political decisions that contributed to internal conflicts

D) the development of political bureaucracy

c

Explanation:

i believe it would be capitalism

populist movement, in u.s. history, politically oriented coalition of agrarian reformers in the middle west and south that advocated a wide range of economic and political legislation in the late 19th century. thus in 1892 their leaders organized the populist, or people's, party, and the farmers' alliances melted away.