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 an island is experiencing a hot summer it is because (A) of the water (B) of the axis (C) of the shade (D) of glaciers

Ex Output:
B


Ex Input:
A good conductor of electricity would be (A) tree (B) coke bottle (C) your finger (D) coke can

Ex Output:
D


Ex Input:
Where would rocks be the smoothest? (A) where thunder was heard (B) where water has flowed for years (C) where wind has blown for days (D) where the human population is the highest

Ex Output:

B