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: When playing pinball on two different machines, joe noticed that the pinball moved quickly over the glass surface whereas it barely moved at all over the mud surface. Question: Which surface showed less resistance? (A) Glass (B) Mud
[EX A]: A

[EX Q]: Sentence: Tim and Tom went to the gym to work out. After an hour Tom was a lot sweatier than Tim, even though they were both wearing shorts and a tank top. Question: Who had been exercising the least? (A) Tim (B) Tom
[EX A]: A

[EX Q]: Sentence: Miriam was playing lacrosse in the backyard. She flung the ball and it rolled slowly on the lawn, then quicker when going across the concrete deck floor. Question: Which surface gave less resistance to the ball? (A) lawn (B) concrete deck
[EX A]:
B