Final answer:
According to Karl Marx, the primary conflict in society is between those who own the means of production (the bourgeoisie) and the working class (the proletariat or lumpen-proletariat).
Step-by-step explanation:
The answer to the question is a) True. According to Karl Marx, the primary conflict in society is indeed between those who own the means of production (the bourgeoisie) and the working class (the proletariat or lumpen-proletariat). Marx believed that this conflict between the bourgeoisie and the proletariat was the root of all social conflict throughout history. He argued that the bourgeoisie, as the owners of the means of production, exploited the labor of the proletariat for their own gain, leading to class struggle.