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 source of heat may come from (A) a cold shower (B) holding hands (C) holding ice (D) Antartica

Output: B


Input: Consider Input: A learned behavior is exhibited when (A) squinting in bright light (B) nailing up a picture frame (C) blinking and gulping air (D) inhaling and exhaling during sleep

Output: B


Input: Consider Input: An organism that can survive without the help of other cells is (A) Brewer's yeast (B) air (C) sand (D) sugar


Output: A