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: Where might you find the substance used to make the shiny metallic foil paper used in cooking? (A) Clouds (B) Rocks (C) Wood (D) Leaves
Example Output: B

Example Input: Where would jumping be the hardest? (A) Mars (B) Jupiterr (C) the Earth (D) the moon
Example Output: B

Example Input: A clean air act must be followed by a (A) web design course (B) hard drive manufacturer (C) math class (D) computer programming course
Example Output:
B