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").

Input: Consider Input: Locusts historically always affect crops (A) in the sky (B) disadvantageously (C) near water (D) positively

Output: B


Input: Consider Input: Which of the following is never an element used to make carbohydrates for the plant? (A) sand (B) water (C) sunlight (D) carbon dioxide

Output: A


Input: Consider Input: During an earthquake, piles of earth can (A) crash through car windows (B) shift on top of one another (C) pile up on houses (D) kill small animals and birds


Output: B