A cry for freedom from an oppressive ruler, and calling others to rally behind them to break free. That's my opinion, I hope it helped.
I would go with B, I do not for sure know the answer but that is the one that seems to make the most sense
C. Emerson's poem has unanswered questions,
making it like a speech. Whitman's poem repeats
ideas for emphasis, making it monotonous.
The line is an example of a direct quotation. That is when a quotation by someone is unchanged and presented in its entirety. Of course, it's a part of a larger speech, but it's unchanged and can be as such analyzed for various things that the linguists would be searching for.