Let the ruling classes tremble at a Communistic revolution. The proletarians [common people] have nothing to lose but their chai
ns. They have a world to win. Working men of all countries unite!
—Karl Marx and Friedrich Engels, Manifesto of the Communist Party, 1848
The excerpt suggests that the authors saw historical events as results of
A.
social conflict.
B.
military victories.
C.
industrial regulation.
D.
international diplomacy.
