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: A lone fox is searching for its next meal in a meadow that used to be bountiful with food. This season, though, rabbits have all been eaten up and the field is dry and barren. The fox may (A) fly (B) speak (C) starve (D) float
Example Output: C

Example Input: an example of converting potential energy to kinetic energy is (A) a resting bird (B) a still rock (C) our own sun (D) cars spinning tires
Example Output: D

Example Input: A hard wind blowing at the back of a bike that is being peddled forward will (A) make it stop (B) speed it up (C) slow it down (D) blow it up
Example Output:
B