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: As you go from farther away from an object to closer to it, the object will (A) get smaller (B) hit you (C) die (D) get big
Example Output: D

Example Input: In order for crops to grow food safely pesticides are used on them. When it floods, this can cause what to be poisonous? (A) Corn (B) air (C) Runoff (D) farmers
Example Output: C

Example Input: How does erosion impact a river? (A) enlargening (B) warming (C) heightening (D) shrinking
Example Output:
A