What is a defining feature of expository passages?

Expository passages are characterized by their focus on providing clear and factual information about a specific topic. The primary goal of an expository passage is to inform or explain rather than to entertain or persuade. They offer readers a structured and objective analysis, often including definitions, explanations, or instructions that help clarify concepts.

This approach ensures that the passage serves as a resource for understanding a subject deeply, without the influence of personal opinions or emotional appeals. Thus, the defining feature of expository passages lies in their ability to present groundwork information and an unbiased analysis, which aligns perfectly with the selected answer.