What defines a rhetorical question?

A rhetorical question is specifically crafted to emphasize a point or provoke thought rather than to receive a direct response. This type of question engages the audience, inviting them to reflect on the subject matter and often leads them to consider the implications of the statement being made. By not expecting an answer, the speaker or writer can draw attention to an idea, making it more impactful.

In contrast, the other options describe situations that don't align with the nature of rhetorical questions. Posing a question to obtain information, requiring a detailed response, or conducting a scientific inquiry indicates that an answer is being sought, which fundamentally differs from the intent behind a rhetorical question.