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: Mike rolled a baseball across a field and it travelled at 5 mph. He then rolled a basketball across a field and it also travelled at 5 mph. The baseball rolled for a longer time then the basketball. Question: Which ball travelled a greater distance? (A) baseball (B) basketball

Answer: baseball

Question: Sentence: Marla is running around the track, while her mom lags behind pushing the baby's stroller. Question: Who take a longer time to make a lap? (A) Marla (B) her mom

Answer: her mom

Question: Sentence: An airplane and a train leave from the same location and travel for three hours. Question: Which traveled the least number of miles? (A) Airplane (B) Train

Answer:
Train