Which of the following is a rhetorical question?

The rhetorical question would be C. Do birds fly?

Explanation:

This is because obviously everyone knows that a bird flies, therefore that question would be asked to prove a point, another rhetorical question would be: Am I typing these words right now? Obviously I am or you wouldn't get this answer.

he risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

a. "how old man winter was driven back” and “ormuzd and arimanes"