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 of these people would be most susceptible to disease? (A) a person with a healthy white blood cell (B) a person with optimal conditions (C) a person with a weak white blood cell (D) an athlete with a clean bill of health

Output: C


Input: Consider Input: A stone may experience the most weathering over (A) a week (B) a year (C) a century (D) a decade

Output: C


Input: Consider Input: Ice wedging is caused by cycles of freezing and thawing of what? (A) h2o (B) plants (C) winds (D) animals


Output: A