Answer: abuse of the capitalist system
Explanation:
Socialism has been around for a long time in one form or the other as it basically calls for the resources of a nation to be shared by its citizens in such a way that everyone is taken care of.
It however gained a lot of ground in the 19th century when the industrial revolution led to massive income inequality as a result of the capitalist system. People like Karl Marx began to advocate socialism as a way to address this income inequality.
