A) understand facts or details about a topic.
Essays can have different purposes and can be categorized based on their purpose.
Expository Essay
Expository essays offer information about a topic in a clear way to help readers understand more about a topic. They are non-fiction and usually present the information in an unbias manner that is not intended to create an argument or convince people. "Expository" means to explain or describe, so expository essays explain topics to readers.
Other Essays
Other types of essays include argumentive, persuasive, narrative, and descriptive. All of these have their own characteristics just as expository does and each has a separate purpose and effect on readers.