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: The circulatory system brings oxygen to the body from where? (A) The chest (B) The brain (C) The feet (D) The stomach

Output: A


Input: Consider Input: Pulse accelerates (A) when cooling down after a work out (B) when running pace increases (C) when running pace slows (D) when entering into a sleep state

Output: B


Input: Consider Input: If a duck lays seven eggs and last year they laid zero eggs, this year they are (A) male (B) increasing young (C) producing zero (D) producing live young


Output: B