You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the correct option for the given question. Write down the answer index: 'A' or 'B'.

[EX Q]: Sentence: Mitch is rolling wagons down a hill at the same time. The red wagon goes to the bottom of the hill, but the black wagon stops halfway down the hill. Question: Which wagon was slower? (A) red wagon (B) black wagon
[EX A]: B

[EX Q]: Sentence: Mike is standing closer to a flashlight then to a lamp. Question: Which object seems brighter to him? (A) flashlight (B) lamp
[EX A]: A

[EX Q]: 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
[EX A]:
B