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:
Which makes a sound when you interact with it? (A) something invented by Pasteur (B) something invented by van Leeuwenhoek (C) something invented by Sax (D) something invented by Galileo

Ex Output:
C


Ex Input:
A storm ravages a town for a week straight, complete with deluges of rain. If someone in that town needs a source of water, it is (A) everywhere (B) missing (C) in short supply (D) rare

Ex Output:
A


Ex Input:
People dumping their trash in the ocean does what to the animals and plant life (A) flies (B) types (C) dirties their habitat (D) reads minds

Ex Output:

C