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:
Humming birds may help the growth of (A) cars (B) buildings (C) ants (D) tulips

Ex Output:
D


Ex Input:
Plants derive what from soil? (A) pollination and germination (B) life sustaining substances (C) roots and oxygen (D) oxygen and argon

Ex Output:
B


Ex Input:
What to humans do that causes animals to lose their habitats? (A) make apartments (B) take walks (C) sing songs (D) eat corn

Ex Output:

A