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:
Consumers eat other what? (A) oxygen (B) animal toys (C) rays (D) weaker bugs

Ex Output:
D


Ex Input:
An echo is produced by what type of reflection of sound source? (A) Direct (B) Distant (C) Varied (D) Single

Ex Output:
D


Ex Input:
Which of the following actions qualifies as cooking food? (A) setting it in the sun (B) shaking it up and down (C) putting it in the freezer (D) running it under water

Ex Output:

A