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: Even items such as rocks mass can be changed due to which process? (A) Weathering (B) Climate (C) Weatherization (D) Weather

Output: A


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: An example of a fossil is the imprinted carcass of a (A) rubber duck (B) tin can (C) shoe (D) murdered organism


Output: D