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:
A plane travels through what? (A) gas layers (B) plains (C) oceans (D) time

Ex Output:
A


Ex Input:
Which of the following, when plugged into an outlet, completes a circuit? (A) gold (B) glass (C) plastic (D) rubber

Ex Output:
A


Ex Input:
What is a renewable resource? (A) Plastic (B) Metal (C) Concrete (D) Rain

Ex Output:

D