Sure, it can. Sometimes a fictional story can be used rhetorically to make a point or convey a message.
Yes, it's possible. For example, a fictional tale might be crafted in a way that employs rhetorical devices to engage the reader and make them think about certain themes or issues.
Definitely. Rhetoric can be employed in fiction to add depth and persuasion. A fictional work can use figures of speech, argumentative techniques, or persuasive language to enhance its impact on the audience.