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").

Example 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
Example Output: B

Example Input: You're most likely to encounter magma at (A) top of iceberg (B) a cloud (C) a space station (D) an island
Example Output: D

Example Input: Gills allow (A) flounder to intake oxygen (B) giraffes to breathe underwater (C) respiration for seals and herons (D) respiration for sea going birds
Example Output:
A