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:
The moon's surface (A) features of variety of landscape features (B) is covered completely in water (C) is 100% flat and smooth (D) is 100% covered in asteroid created craters

Ex Output:
A


Ex Input:
a student leaves a nail line on a mineral sample, so that mineral can be described as what? (A) a mineral (B) a soft mineral (C) a liquid mineral (D) a mineral melt

Ex Output:
B


Ex Input:
What can you make with the stove? (A) ice cream sundaes (B) whipped cream (C) egg noodles (D) ice cream sandwiches

Ex Output:

C