Hello. You did not inform the speech to which this question refers, which makes it impossible for it to be answered accurately. However, I will try to help you in the best possible way.
If King was trying to be persuasive, lines 307 - 334 can only affect persuasiveness by reinforcing the argument King is making. This can be done through a clear and objective diction that reinforces the importance of King's words. In addition, these lines can create a logical, ethical or emotional structure for the speeches, proposing a greater connection between king and the public.
Simile: The birthday party ended and the unhappy child was still screaming like a banshee.
Metaphor: The birthday party ended, but the child was still a banshee.
Answer:
Sometimes the narrator has an opinion on things and takes sides. But if most people agree on a choice, the narrator usually agrees too. For example, in a fairy tale, snow white fell asleep and most people wanted snow to wake up. (The dwarves) But only the evil queen and her servants wanted her to die. SO if the narrator said
"Snow white was so dramatic and sad and she was so useless. The evil queen on the other hand, deserves to win and she is amazing."
People wouldn't want to read it because the opinion is not very popular.
Explanation: