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: Why animal may use a rock as shelter (A) Centipede (B) Dolphin (C) Seagull (D) Dog

Output: A


Input: Consider Input: In a zoo, a polar bear exhibit will contain (A) salt (B) cacti (C) strong fans (D) sand

Output: C


Input: Consider Input: A renewable resource is used to produce (A) petroleum (B) plastic rulers (C) notebook paper (D) Styrofoam plates


Output: C