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:
If a thing has a good impact on nature, it is most likely (A) putting plastics in special containers (B) burning old used tires (C) putting cigarettes out in ponds (D) using aerosol air fresheners

Ex Output:
A


Ex Input:
Which of the following can be found on the moon? (A) Non-volcanic Mountains (B) Life-filled Oceans (C) Volcanic Mountains (D) Multiple Land Masses

Ex Output:
A


Ex Input:
Over your head is dark though it is only afternoon on a summer's day. Lacking an eclipse of the sun, a viable reason for this darkness is (A) the sky lacks clouds (B) the sun is shining (C) its about to storm (D) clouds are completely absent

Ex Output:

C