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").

Input: Consider Input: What will air usually do when heated up beyond a certain point? (A) it will fall (B) it will remain (C) it will ascend (D) it will die

Output: C


Input: Consider Input: The Norwegian government maintains a special storage chamber 800 miles from the Arctic Circle for use in the event of a man-made or natural disaster. The storage structure is built in Arctic permafrost and holds (A) seeds that are growing now (B) seeds for the Arctic animals (C) seeds that spread the permafrost (D) preserved seeds for reproducing edible crops

Output: D


Input: Consider Input: With the decrease in size of Antarctica Fiji will soon be (A) gone (B) better for fishing (C) richer (D) colder


Output: A