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: Deer are less safe in the woods because wolves (A) have fur (B) howl (C) have claws (D) have tails
Example Output: C

Example Input: Which doesn't contain water? (A) Sea of Tranquilitiy (B) Caspian Sea (C) Dead Sea (D) Caribbean Sea
Example Output: A

Example Input: Kiln fired clay ingots can insulate from (A) ionic discharge (B) falling meteors (C) snowmen (D) underground rivers
Example Output:
A