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").

Example Input: A person can get sick when eating a vegetable if it was farmed using (A) water (B) dirt (C) insect destroyers (D) tools
Example Output: C

Example Input: An example of an acquired characteristic is (A) the thickness of a horse's mane (B) the length of a horse's mane (C) the number of legs a horse has (D) the color of a horse's mane
Example Output: B

Example Input: Books can be made out of (A) card stock (B) cement (C) glass (D) copper.
Example Output:
A