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: Animals help with seed dispersal due to the seeds from the fruit they eat being (A) expelled via excrement (B) smiled (C) expelled from school (D) kicked
Example Output: A

Example Input: In the 60's people watched on TV while for the first time people walked on (A) a high rooftop in a major city (B) a satellite without much air in our solar system (C) the edge of a cliff in the mountains (D) a beach in Brazil
Example Output: B

Example Input: What did some ancient societies use to reflect light? (A) wood (B) plants (C) clothing (D) rocks
Example Output:
D