What defines a novel of manners in literature?

A novel of manners is characterized by its exploration of the social behaviors, customs, and norms of a particular society or social class. It examines how these societal codes influence the interactions and relationships among characters, often highlighting the contrast between individual desires and societal expectations. The strength of a novel of manners lies in its attention to the subtleties of social etiquette and the implications these have on personal conduct and societal standing.

In this context, the correct choice emphasizes the study of these behavioral codes and norms, which is central to the genre. While the other options touch upon various aspects of literature, such as historical narratives, emotional expressions, or settings like rural landscapes, they do not capture the essence of what defines a novel of manners. This genre specifically focuses on the intricacies of social life and the impact of societal standards on individual actions, making the chosen answer the most accurate representation of the concept.