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: Consumers eat other what? (A) oxygen (B) animal toys (C) rays (D) weaker bugs
Example Output: D

Example Input: An example of an instinctive behavior is (A) doing a cartwheel outside (B) singing on a stage (C) eating a large pizza (D) a mother feeding the kids
Example Output: D

Example Input: Decomposition results in the production of which element? (A) Silicon (B) Phosphorus (C) Carbon (D) Hydrogen
Example Output:
C