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: Lucy left a pan half full of water in the sun and it dried up in one afternoon. (A) the pan was in the cool shade (B) a squirrel dumped the water of its head to cool off (C) butterflies drank it all (D) it was the summertime
Example Output: D

Example Input: Factories often add something to the environment that is (A) helpful (B) productive (C) sanitizing (D) posionous
Example Output: D

Example Input: Where would you find a less than average amount of biodiversity compared to other biomes? (A) a jungle (B) the arctic (C) a forest (D) a rain forest
Example Output:
B