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.

Example Input: Sentence: Sarah used a remote control to turn on two identical lamps with the same power bulb, one nearby and the other all the way across the room. Question: Which lamp looked brighter? (A) lamp nearby (B) lamp across the room
Example Output: lamp nearby

Example Input: Sentence: A shopping cart rolls by itself across a parking lot. Then it gets to a field. The cart rolls only a little more after it enters the field. Question: Why does this happen? (A) the parking lot is a rougher surface (B) the field is a rougher surface
Example Output: the field is a rougher surface

Example Input: Sentence: The first little pig built his house of thin straw. The second little pig built his house of thick wood. Question: Whose house would be stronger when the big bad wolf arrived? (A) first little pig (B) second little pig
Example Output:
second little pig