Answer:
A). To support the righteous notion that John Brown was condemned because he chose to risk being vilified for defending impoverished, helpless people rather than protecting the wealthy and politically well-connected.
Explanation:
The authors often cite quotations in their essays or speech with the aim to substantiate their central claim and enhance its validity. It assists them to enhance the logical validity of their claim and reinforce their ideas to the readers/audience as the quotations serve to establish the credibility of the author and enhance its efficacy.
As per the question, Emerson employs John Brown's quotation in order to back his ethical notion that 'John Brown was condemned as he supported the weak, impoverished, and people instead of confirming to the wealthy or politically connected'. Emerson here intends to reinforce his idea that those who contradict these politically established or wealthy ones are always deplored or criticized as they feel a threat to their authority and hence, attempts to influence the people. Thus, option A is the correct answer.