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: Cellular respiration releases (A) blood (B) waste (C) snot (D) feces
Example Output: B

Example Input: To have energy that will last your whole life you'd buy a (A) car battery (B) loaf of bread (C) turbine (D) tank of gas
Example Output: C

Example Input: As a lake increases in size, there are more (A) English Premier Leagues (B) catfish (C) airplanes (D) volcanoes
Example Output:
B