Answer:
I think its C. or A., because D and B don't really make sense. But if the said novel was written in poetry I think it would just be "poetry". So I believe the answer would be C. But then again D also could be right because a characteristic could be being non-fiction....But C makes the most sense out of all of them.
To save you from my entire paragraph of rambling, the answer is C.
anyway, I hope this helps!! :)