The answer is B. The word bourgeoisie, in Karl Marx's theoretical perspective, refered to the people who currently owned the means of production.
According to Marx, society is divided into two social classes, the bourgeoisie and the proletariat. The bourgeoisie are the men who are self-employed and own different types of business, they own the means of production. The bourgeoisie exploite the proletarians, who are the working classes that own no properties and are employed by the proletariat.