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 metal rod is sitting outside and soaks up a lot of energy from a star, so the metal (A) cries (B) wiggles (C) sears (D) dies
Example Output: C

Example Input: What displays the movement of electrons from the base atoms? (A) venus (B) mercury (C) plasma star (D) pluto
Example Output: C

Example Input: Renewable resources are (A) provided by the largest star and wind (B) provided by solar and petroleum reserves (C) provided by the sun and fossils (D) provided by the sun and coal
Example Output:
A