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: In order for trees to use sunlight they must (A) their roots (B) the light switch (C) CPR (D) respire

Output: D


Input: Consider Input: A bird in an arid place can find water, despite a lack of puddles, lakes or rainfall if it (A) pokes a tough plant (B) eats a small stone (C) takes out a loan (D) cries for a minute

Output: A


Input: Consider Input: Melting point means temperature at which a solid does what? (A) flys (B) gets melty (C) floats (D) sinks


Output: B