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: An example of seed dispersal is animals eating what? (A) dirt (B) hard shells (C) grass (D) animals
Example Output: B

Example Input: When you exit a dark film theater, the world (A) looks darker (B) looks brighter (C) looks the same (D) looks more French
Example Output: B

Example Input: A new walnut tree sprouted up 200 feet away from the nearest other walnut tree. (A) a walnut was carried to the new spot on a light breeze (B) a walnut was picked and carried into a house (C) all the walnuts were gathered by a walnut farmer (D) a squirrel was forgetful
Example Output:
D