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: If a wolf wants to grow big and strong, what must he have? (A) a car to drive (B) a house to live in (C) a bus to sell (D) good eyes to see with
Example Output: D

Example Input: Polar bears are best suited for (A) colder places (B) hotter regions (C) Jupiter's polar caps (D) northern desert regions
Example Output: A

Example Input: plant requires what for photosynthesis (A) light that changes color (B) light from our closest star (C) the reflection of something shiny (D) light reflected from our orbiting rock
Example Output:
B