When the author's purpose is to express an opinion about a topic, their main intention is to share their personal viewpoint or perspective on a particular subject. In the given excerpt, the author is likely trying to convey their own thoughts, beliefs, or ideas about something. This could involve expressing a stance, providing arguments or evidence to support their opinion, or attempting to influence the reader's perspective on the topic.
Unlike other purposes such as prompting an emotion in the reader or conveying details about the characters, expressing an opinion focuses on the author's subjective viewpoint rather than eliciting a specific emotional response or providing factual information about the story or characters. The author may use persuasive language, examples, or reasoning to support their opinion and engage the reader in considering their point of view.
It's important to analyze the context and content of the excerpt in order to determine the author's purpose more accurately.