Instructions: 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: A small volcano under the sea erupts ever four years. After a few centuries, there will be (A) new ground to inhabit (B) a large fish eating a tree (C) a burst of fire from the future (D) a small crack in a tall mountain
Output:
A