Which of following most logically completes the argument? A. some prehistoric cave paintings in France also depict other animals as having a hump B. fossils of the giant deer are much more common in Ireland than in France C. animal humps are composed of fatty tissue, which does not fossilize D. the cave paintings of the giant deer were painted well before 16,000 years ago E. only one currently existing species of deer has any anatomical feature that even remotely resembles a hump