Answer: C. Vladimir Lenin during the Russian Revolution
Explanation: One of the greatest ideological followers of Marx and Engels was definitely Lenin. All the other three political leaders in the fight for justice, independence and greater equality used non-violent methods of struggle, but although there was a violence somewhere and somehow, these leaders proclaimed non-violence. On the other hand, Lenin fully followed the teachings of Marx and Engels, and what was written in the Communist Manifesto, that the armed struggle was completely permissible and legitimate in the class struggle, even necessary in the Revolution to achieve a classless society. As such, the bourgeois class is marked as the cause of all division, antagonism and the exploitation of other classes, and therefore, at all costs, even at the cost of armed conflict, should be overthrown and abolished.