Detailed Instructions: 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.
Q: Sentence: A martial arts expert wants to demonstrate the force of his hands by striking a couple of boards. When stacked next to each other the white board is twice as tall as the red board. Question: Which board will be more difficult for the expert to break? (A) white board (B) red board
A:
white board