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.
The main idea of the passage is why they is the first two states to choose between union and South they couldn't decide so that's why they made a civil war
I believe it would be B, because there are two subjects that the speaker is referring to at the beginning of the sentence; the caterpillar and the leaf. When they use the word "it" in the second half of the sentence it is unclear whether they mean to say if "it" is the leaf or the caterpillar which they are carrying to their brother.
