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:
This animal thrives while the sun is down (A) the bull shark (B) the snowy owl (C) the prairie dog (D) the spotted giraffe

Ex Output:
B


Ex Input:
When cutting down rain forests, it is important to keep in mind air quality. When too many trees are cut down in a given area, there may be decrease in the air's (A) quality (B) carbon dioxide (C) helium amounts (D) carbin dioyide levels

Ex Output:
A


Ex Input:
The instance of which of the following colliding and causing death is considered to happen? (A) Trees (B) Buildings (C) Animals (D) Electronics

Ex Output:

B