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: Coal and oil directly removed from the ground are (A) directly consumed (B) thrown away (C) made into products (D) stored underground
Example Output: C

Example Input: In a bowl of water with the sun shining on it, what happens to the water after four hours? (A) the water is growing algae (B) there is less water (C) the water is dirty (D) there is more water
Example Output: B

Example Input: slope is a measure of the difference in elevation from the top to the base of a (A) penny (B) tower (C) pyramid (D) box
Example Output:
C