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 man will most likely be unable to see if he gets lost in (A) a dense forest (B) a long river (C) a desert (D) a mountain

Ex Output:
A


Ex Input:
Plants grow because they (A) decide the time is right (B) can breathe a lot of air (C) use what people breathe out to survive (D) take photos of other plants

Ex Output:
C


Ex Input:
A person turns a flashlight on and points it at a cut stone, which results in (A) flower patterns (B) varied hues (C) varied light scents (D) sizes of elephants

Ex Output:

B