In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").

Example Input: Jeff noticed that the big dipper was in a different spot in the sky at 2am than where it was at 10pm. Why? (A) because of the earth's orbit (B) the stars had rotated (C) Jeff had been instantly transported thousands of miles from where he'd been at 10pm. (D) the earth had turned
Example Output: D

Example Input: What is an instance of carnivores only eating animals? (A) a mouse eating a cricket (B) a dog devouring a piece of cheese (C) tyrannosaurus rex devouring a pterodactyl (D) a cat eating grass outdoors
Example Output: C

Example Input: which of these indicate non-living tree? (A) it stands tall with flowers (B) none of these (C) it is fresh and green with strong roots (D) it lies horizontally on the park grounds
Example Output:
D