What purpose do individual dividers serve in a document?

Individual dividers play a crucial role in organizing a document by clearly separating chapters or sections. This functionality is particularly important in lengthy documents, as it helps readers navigate through the content more easily. By demarcating different sections, dividers allow the reader to locate specific information quickly, enhancing overall comprehension and usability.

While it's true that dividers can enhance the appearance of a document, their primary purpose is to delineate content rather than serve as mere decorative elements. Dividers do not contribute to reducing printing costs because they typically require additional paper or material, and they do not provide a summary of contents like a table of contents would. Thus, the primary utility of individual dividers lies in their ability to structure a document effectively, making choice B the most appropriate answer.