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: Which event can lead to the human caused change of an environment? (A) seasonal storms (B) annual flooding (C) natural woodland fires (D) clear cutting

Output: D


Input: Consider Input: Living underground can be used for hiding from what? (A) food (B) hunters (C) dirt (D) water

Output: B


Input: Consider Input: What can cause a forest fire? (A) littering cans and food wrappers (B) an overheating car engine (C) a combination of snow and rain (D) sudden electrostatic discharge from a cloud


Output: D