You will be given a definition of a task first, then some input of the task.
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.

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
Output:
second little pig