According to Durkheim, society is similar to a biological organism consisting of components having different functions to form a unity. He emphasizes that society has sanction power on individuals through social facts. For Durkheim, social facts have important functions in maintaining the continuity of societies. In this respect, even crime and punishment are functional facts to determine the limits of socially acceptable behaviors. Also, he believed that collective consciousness forms the basis of a central value and norm system that unites the parts in a social organism. Besides, he thought that moral consensus or social ethics, which is based on collective consciousness, is closely related to religion, and religion is one of the most important facts that shape social solidarity. 

On the other hand, that when conflicts in capitalism increase, socialism, which is a classless society stage, will prevail is one of Marx's claims. 

The correct answer is C.