What is the main idea of the argument in this passage? "The fruits of the toil of millions are boldly stolen to build up colossal fortunes for a few, unprecedented in the history of mankind; and the possessors of those, in turn, despise the republic and endanger liberty. From the same prolific womb of governmental injustice we breed the two great classes—tramps and millionaires."

A-The people who work hardest will become millionaires.
B-The rich are acting in the best interests of the country and the poor.
C- The economic system is unfair, and the rich profit from the poor.