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: Locusts historically always affect crops (A) in the sky (B) disadvantageously (C) near water (D) positively
Example Output: B

Example Input: You can use what to fake sunlight for plants? (A) love (B) a flash light (C) breathing (D) water
Example Output: B

Example Input: A yard can become a changed environment when (A) crows show up (B) humans see it (C) worms live there (D) vegetables are farmed
Example Output:
D