Passage Summary: Two professors debate whether advertisements belong in literature classes. While one thinks they are too trivial, the other argues that because ads are socially harmful and literature students learn how to analyze texts, the department is responsible for teaching students how to handle them.

Conclusion: The literature department has an obligation to incorporate the study of advertisements into its undergraduate curriculum.

Reasoning: Advertisements have a negative social impact because people struggle to decode their hidden messages, and literature courses provide the specific analytical tools needed to understand such texts.

Analysis: To justify Wigmore's conclusion, we need a principle that transforms a 'capability' into an 'obligation.' The argument establishes that the department has the tools to solve a social problem, then concludes they must use them. Look for an answer choice that bridges this gap by stating that if an academic discipline can mitigate a social harm through its specific expertise, it is required to do so. This turns the professor's observation of a need into a moral or professional mandate.