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 two objects would electricity best flow through? (A) a tin can and a plastic fork (B) a steel beam and a soda can (C) an eraser and a wooden pencil (D) human skin and rubber gloves

Ex Output:
B


Ex Input:
This seed carries food: (A) rock (B) strawberry (C) thunder (D) water

Ex Output:
B


Ex Input:
Water vapor helps with? (A) The sidewalk (B) A pool (C) A cat (D) A habitat

Ex Output:

D