The answer would be 3. Communism. Essentially, he called it Marxism- where the population shares everything. This idea was expanded upon to create excessive communism, which grew to be used in Russia and China.
Karl Marx felt that the working class would rise up and rebel against the business owners and other wealthy elites in capitalist economies. After that, these individuals would establish a communism system in which the means of production is controlled by the government. This communism system would revolve around almost all citizens have the same amount of resources.
