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:
All the water vanishes from a small depression basked in sunlight on a paved road because of (A) freezing (B) evaporation (C) condensation (D) precipitation

Ex Output:
B


Ex Input:
What eats other animals for food? (A) marlins (B) goats (C) rabbits (D) elephants

Ex Output:
A


Ex Input:
Wind is a resource that (A) is a fresh idea (B) can be retrieved repeatedly (C) is a source of water (D) is useless in farming

Ex Output:

B