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: in order for a person's burger to make it successfully into the toilet, which of these must be functional? (A) the respiratory system (B) the digestive system (C) the circulatory system (D) the destructive system
Example Output: B

Example Input: A way for an octopus to evade predators is to (A) befriend the predator (B) emulate a rock (C) swim around (D) bury itself underground
Example Output: B

Example Input: Some animals get caught easily by other animals because they are slow while the predators are (A) Nice (B) speedy (C) manipulative (D) crazy
Example Output:
B