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: A glacier moved through an area years and years ago, and scientists can tell this by (A) looking at the moon (B) looking at the dogs (C) looking at the sky conditions (D) glancing at nearby stone

Output: D

Input: Consider Input: You can eventually obtain water from a lake even if it's (A) frozen (B) gone (C) evaporated (D) dry

Output: A

Input: Consider Input: You would use a seismometer if (A) A mysterious rumble off the coast of Japan (B) Someone farted in class (C) Kids were stomping on the floor (D) to track the buzz of a bee
Output: A