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: A shoe seems gold and green at first, then at second glance looks blue and silver. This could be due to (A) interrogation (B) comas (C) refractions (D) cellulite

Output: C


Input: Consider Input: Which likely increased atmospheric CO2 recently? (A) sustainable fisheries (B) electric cars (C) motorcycles (D) ant populations

Output: C


Input: Consider Input: Deposition is caused by what? (A) venus wind (B) forceful gales (C) airplanes (D) eroding mentalities


Output: B