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 is it fall one month and spring another month? (A) the moon has different phases (B) the earth is revolving (C) solar flares appear in cycles (D) the earth is in a different place in its orbit

Ex Output:
D


Ex Input:
If a person is lost in an arid space with little rainfall, they can live longer if they (A) use water barely (B) use water freely (C) use water liberally (D) use water gratefully

Ex Output:
A


Ex Input:
New plants sprang up everywhere seeds were taken by (A) cool breezes (B) magic (C) luck (D) demons

Ex Output:

A