Answer:
D. Decorate tension between rich businesses and poor workers.
Step-by-step explanation:
Karl Marx was a great opponent of the free market economy. This is because he believed that the lack of government regulation, to impose limits on companies and entrepreneurs, created an unequal system of production, within the companies themselves, which would cause suffering for workers and the accumulation of wealth for employers.
This is because, according to Marx, one of the main problems of the free market system was to maintain a system in which companies had gigantic profits at the expense of poor and exploited workers, that is, it was against this type of economic system on account tensions between rich companies and poor workers.