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: What is the best example of a live birth? (A) a fish laying a clutch (B) a platypus warming an egg with its furry body until a baby is born (C) a bird warming the eggs in her nest until they hatch (D) a koala delivering into her pouch
Example Output: D

Example Input: The usual kind of weather in a location is called what? (A) warmth (B) fog (C) zone conditions (D) visibility
Example Output: C

Example Input: To positively affect the environment (A) cut down trees and shrubs (B) drive a gas guzzling car (C) use Styrofoam plates and cups (D) cultivate dogwoods and oaks
Example Output:
D