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: pushing against a rolling boulder will decrease its (A) size (B) height (C) impetus (D) ambitions

Output: C


Input: Consider Input: a student leaves a nail line on a mineral sample, so that mineral can be described as what? (A) a mineral (B) a soft mineral (C) a liquid mineral (D) a mineral melt

Output: B


Input: Consider Input: Metamorphosis changes an animal to a form in which it can (A) communicate with others (B) eat (C) reproduce (D) hunt for food


Output: C