Answer:
(b)-Conflict Theory
Explanation:
According to conflict theory the social structures are the result of conflict between people who have different resources and interests.
Here, Mark who's family is wealthy believes that he can be whatever he wants to be in life. His access to resources is vast. Any of his desires can be fulfilled.
However, Stephen who is not that wealthy does not have access to resources like Mark. So, Stephen is made to believe that he needs a job in order to support himself. He is only going to pursue a career where money can be made easily.
Hence, the sociological paradigm discussed here is conflict theory.