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: What impacts an objects ability to reflect light? (A) color pallete (B) weights (C) height (D) smell
Example Output: A

Example Input: A needle lined with magnets will pull north. If north is to the right and you want to go west, you'd walk (A) straight (B) left (C) backwards (D) right
Example Output: A

Example Input: MRIs can make (A) fillings dance (B) great yogurt (C) programs for assembly (D) a mess
Example Output:
A