Answer:
C. It emphasizes a series of points made by the speaker.
Explanation:
A rhetorical question is a literary device which is a statement in the form of a question used to certify a point and does not elicit a reply. This device is used to provide more clarity to the speaker's central idea and emphasize the value points that he wishes to highlight. It is the central question which the speaker wants the readers' focus to shift upon and thus dramatically raises this statement or question to punch up his point and make it stand out completely and persuade the readers as he (the speaker) wants them to spend some time in thoughtful contemplation .
Answer: It emphasizes the idea that bacteria can be both helpful and harmful.
Explanation: Bacterial microbes are essential to helping our bodies work, but also they can also harm us as well. Therefore C is correct.
Hope this helps!
What Herbert ??? (Unnecessary)
It would be
To develop Characters by displaying their interactions.
