What is meant by "purpose" in writing?

In writing, "purpose" refers to the reason behind why the author has chosen to include certain information or present the text in a particular way. It reflects the author's intention—what they hope to achieve with the writing. This could involve informing, persuading, entertaining, or expressing ideas and emotions. Understanding the purpose helps readers comprehend the context and message of the text more effectively.

This concept contrasts with the other choices, which focus on specific elements rather than the overarching reason for the writing. For instance, the main character's goal pertains to narrative development, the photograph relates to visual elements, and the total number of pages is a quantitative measure. None of these capture the essence of why a piece of writing exists or what the author aims to communicate.