Answer:
Structural Functionalism
Step-by-step explanation:
Based on the information provided within the question it can be said that the study is an example of Structural Functionalism. In the context of sociology, this term refers to a theory made in order to explain why society functions in the way that it does, by emphasizing relationships between social institutions and society. Therefore a study attempting to find out why society likes a certain story as opposed to another one would be an example of this theory.