ABAB
this is because the first and third sentences rhyme and the second and fourth sentences rhyme
To refute something means to prove that something is not true, wrong, incorrect. So the answer would be none of those... I would choose B, it's close in meaning.
But id the questions ask what is the antonym, then the answer would be A.<span /><span />
Okay, so this is a little hard to answer when you do not have the excerpts, but I will try my best to work a answer out of the headings. I think your answer would be C. It makes sense, the info that comes after the titles, so If I were you I would go with C.
I hope that helps.
Tragedy is a sad event but comedy is to bring joy or laughter