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 cultivation of a range of crop types in a specific order has a positive impact on (A) soil quality (B) water quality (C) air quality (D) atmospheric conditions

Ex Output:
A


Ex Input:
This can be used to light up a light bulb (A) grass (B) dirt (C) stones. (D) biofuel

Ex Output:
D


Ex Input:
Reptiles may actually be (A) grumpy (B) brainless (C) magical (D) pea brained

Ex Output:

D