Marx argued that the capitalist bourgeoisie mercilessly exploited the proletariat. He recognised that the work carried out by the proletariat created great wealth for the capitalist. ... He described how the wealth of the bourgeoisie depended on the work of the proletariat. Therefore, capitalism requires an underclass.
I think it’s a. But I could be wrong
United States Department of Labor's Bureau of Labor Statistics should be the answer.
