Explanation
Correct answer: C.
Choice C is the best answer. The text describes how Miranda circulated, edited, and added footnotes to “Letter to the Spanish Americans,” and it claims that the letter and its author would have “remained insignificant” if it weren’t for Miranda’s efforts.
Why the other choices are wrong
Choice A
Choice A is incorrect. The text only says that Viscardo wrote the letter and that Miranda edited it: it never suggests that the original authorship of the letter is up for debate.
Choice B
Choice B is incorrect. This contradicts the text. The text says that Miranda edited and footnoted the letter, but it identifies Viscardo as the letter’s author. It also never identifies certain arguments as more eloquent than others.
Choice D
Choice D is incorrect. This is outside the scope of the text. The paragraph describes Miranda’s role in the creation and distribution of the letter, but it doesn’t get into the effects of the letter on other people.