instruction:
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: And old pilot, famous for his record-breaking flights in the 40's, wants to prove he can still do it. He plans an around the world trip and challenges a modern aircraft against his old one. Question: Which plane is likely to reach the final destination before the other? (A) The modern aircraft (B) the old aircraft
answer:
The modern aircraft


question:
Sentence: The class is outside for P.E., half the children have chosen to walk their 4 laps, while the other half run the same distance. Question: Which half will likely sweat more? (A) Students who walk (B) Students who run
answer:
Students who run


question:
Sentence: Toby went ice skating during the winter and noticed that he hardly had to put any effort into moving forward when he switched from the sidewalk to the ice on the pond. Question: Which surface was smoother? (A) Sidewalk (B) Ice pond
answer:
Ice pond