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:
A deer eats lots of grass, but the deer is unable to create more food for itself, because in the food chain, the deer is unable to be (A) a producer (B) a consumer (C) a manager (D) a creator

Ex Output:
A


Ex Input:
heat and pressure change the remains of what into natural gas? (A) leaves (B) cans (C) books (D) cars

Ex Output:
A


Ex Input:
If a tree burns down, it can be made right by (A) buying a plastic tree (B) visiting a rain forest (C) reading about it in the paper (D) placing seed in dirt

Ex Output:

D