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 a person restores a garden complete with oaks, then they have replaced (A) concrete (B) jelly (C) steam (D) a resource
Example Output: D

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: A pot of water is ready to cook noodles when it is boiling, as noted by (A) salty taste (B) water smell (C) bubble production (D) cool water
Example Output:
C