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: Sunlight is a source of (A) wind energy (B) warmth (C) frigid temperatures (D) moonlight

Output: B


Input: Consider Input: A wolf would eat (A) an ibex (B) a mountain (C) a tree (D) a cloud

Output: A


Input: Consider Input: sugar dissolves in what when they are combined? (A) dirt (B) ocean liquid (C) honey (D) air


Output: B