The answer is A, cause/effect. Marcia is focusing on how the war started, what ended it, and how it affected America. Cause/effect covers all these things, while the other answers either skip over these things completely or concentrate on only a few.
B and A look like good answers, but the meaning of candor is "unbiased, impartial"; and although that seems like a good answer it is not because the question does <em>not</em> ask you about a quote that talks of <em>entering</em> an argument, simply <em>being</em> in it. So, I would definitely say that the answer is A. :)
A). Slap Boo's house and run.
It’s A, the narrator is being persuasive.
That they are soldiers and they believe in God. (1 God at that AND NOT multiple gods)<span />