The rhyme scheme of a poem subconsciously affects the way you perceive the writing, much in the same way that the soundtrack of a movie can make you feel afraid, or the way that certain types of rap can make you feel passionate while others make you feel empowered
I know it isn't C or D, but A makes more sense than B. I do not have this specific assignment, so I do not know for certain, but this seems the most logical answer. I wish you the best of luck.