Correct Option: C

Karl Heinrich Marx, (5 May, 1818 – 14 March, 1883) was a German philosopher, economist, sociologist, historian, journalist, and revolutionary socialist. His ideas played a significant role in the establishment of the social sciences and the development of the socialist movement. He is also considered one of the greatest economists in history. He published numerous books during his lifetime, the most notable being The Communist Manifesto (1848) and Capital (1867–1894). He often worked closely with his friend and fellow revolutionary socialist, Friedrich Engels. Marx’s theories about society, economics and politics—collectively known as Marxism—hold that all societies progress through the dialectic of class struggle: a conflict between an ownership class which controls production and a lower class which produces the labour for goods.