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.
--------
Question: Sentence: Teenage Mary and her grandmother, Millie, are both gymnasts. Both are talented athletes, even though Millie is getting a little stiff in her later years. Question: Between senior Millie and young Mary, which one is more at risk for broken bones? (A) Mary is more at risk (B) Millie is more at risk

Answer: Millie is more at risk

Question: Sentence: Mike's belt is more flexible then his book. Question: Which item is less likely to break when he bends it? (A) belt (B) book

Answer: belt

Question: Sentence: A traveler wants to go between cities in Japan. She does some research and sees that a bullet train can go much faster than a car. Question: If she wants to spend less time in her trip from city to city, which should she choose? (A) bullet train (B) car.

Answer:
bullet train