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").

Ex Input:
Why does a wolf eat rabbits? (A) to show rabbits they should stay away (B) to get the energy it needs to survive (C) because it hates rabbits (D) to show other wolves it is strong

Ex Output:
B


Ex Input:
This can be used to light up a light bulb (A) grass (B) dirt (C) stones. (D) biofuel

Ex Output:
D


Ex Input:
Sea hares are poisonous slugs, with tiny bunny-like tentacles, that float in water currents and ocean waves. They squirt a purple colored chemical that's sticky and smelly (A) to attract a mate (B) to swim in deep waters (C) to ward off predators (D) to color the water

Ex Output:

C