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 trees to use sunlight they must (A) their roots (B) the light switch (C) CPR (D) respire
Example Output: D

Example Input: A boy that has two legs and two arms has parents that have (A) nearly an arm and a leg (B) the same number limbs (C) their left arms only (D) one right leg each
Example Output: B

Example Input: Which likely has a negative impact? (A) water on the glaicial environment (B) life on the glaicial environment (C) cold on the glaicial environment (D) heat on the glaicial environment
Example Output:
D