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: A person wants their yard to be a wonderful ecosystem for local wildlife. They consider doing a few things in order to facilitate this, but ultimately decide that the best way to make a great impact is to (A) make some more money (B) plant a wet rope (C) plant a blue spruce (D) sing to their flowers
Example Output: C

Example Input: What does a tuna have that causes it to swim faster than a seahorse? (A) Lower body temperature (B) Bigger scales (C) Bigger fins (D) Thicker caudal fin
Example Output: C

Example Input: Which relationship is accurate? (A) rabbits always eat producers (B) plants eat rabbits which eat plants (C) rabbits eat plants which eat plants (D) plants eat plants which eat plants
Example Output:
A