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 brown mouse and a black mouse each run through 50 foot tunnels as quickly as they can. The black mouse made it to the other end in a shorter amount of time than the brown mouse. Question: Which mouse couldn't run as fast? (A) the brown mouse (B) the black mouse

A: the brown mouse
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Q: Sentence: Terry was bringing his car to the mechanic to check the tire light sensor that had been going on and off for a couple of days. The light was currently off and he wanted it to go on by the time he got to the mechanic so they could see what he was talking about. Terry had the choice of driving on a gravel road or an asphalt road to get to the mechanic. Both roads took the same amount of time. Question: Which road would create more heat against Terry's tires, better guaranteeing the tire light sensor would go on? (A) gravel (B) asphalt

A: gravel
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Q: Sentence: Bobby's grandparents have given him a box full of toys. They tell him to come pick the toys up in his wagon and pull the wagon home. The empty wagon is very light to Bobby, but once he puts the toys in it, he notices that it feels very weighed down. Question: In which situation will Bobby have more trouble getting the wagon to reach a quick speed from a stopped position? (A) when the wagon is empty (B) when the wagon is filled up with toys.

A:
when the wagon is filled up with toys
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