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:
You can work longer when (A) Autumn changes to Winter (B) spring changes to summer (C) tree leaves start falling (D) the first snow starts falling

Ex Output:
B


Ex Input:
What contains nutrients for plants? (A) dirt cheap (B) wind (C) ground minerals (D) soiled clothes

Ex Output:
C


Ex Input:
Which can go in the recycled bin (A) duct tape (B) hair gel (C) Sprite container (D) cell phones

Ex Output:

C