You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct answer (return the string of the correct option, not 'A' or 'B') for the given question.

Ex Input:
Sentence: A cucumber experiences more friction sliding across a garden then across a kitchen floor. Question: Which surface gives the cucumber a bumpier ride? (A) garden (B) kitchen floor

Ex Output:
garden

Ex Input:
Sentence: A cat and a dog both run at 5 mph. Question: If the cat runs for a longer time then the dog, which will have gone the greater distance? (A) cat (B) dog

Ex Output:
cat

Ex Input:
Sentence: A globe rolling around on a library floor experiences less resistance then one rolling around on a study floor. Question: Which floor will cause the globe to heat up less when rolled across it? (A) study floor (B) library floor

Ex Output:
library floor