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 you are at a pond throwing rocks, what picnic leisure item should a rock look most like for skipping? (A) Frisbee (B) Soccer Ball (C) Football (D) Stick
Example Output: A

Example Input: If I wanted to get more energy after exerting myself too much (A) I can consume an apple (B) I can go for a run (C) I can brush my hair (D) I can wash my face
Example Output: A

Example Input: Who famously explicated the science of dropping something? (A) Galileo (B) Newton (C) Einstein (D) Rutherford
Example Output:
B