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: 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
Example Output: A

Example Input: Sliding off concrete and onto gravel produces higher levels of (A) shine (B) value (C) longevity (D) chafing
Example Output: D

Example Input: The substance that the respiratory system takes in from the air is released by (A) insects (B) birds (C) plants (D) bears
Example Output:
C