In the short story "The Monkey's Paw," the mood that is created is one of anxiety. In this story, we learn that the Monkey's Paw has supernatural powers, and can grant wishes. However, we also learn that these wishes often go wrong. The author foreshadows that this will be the case of the White family, who will regret making their wishes. Knowing this fact causes anxiety to the reader.
I think thew answer is D. "The author supplies the rubuttel that quotes more current research". I'm not 100% sure but it was the best one i could think of. Hope it's right