instruction:
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'.
question:
Sentence: A leaf skidding onto a dirty porch gets a lot hotter then one skidding onto a clean porch. Question: Which surface will allow the leaf to skid at a higher rate of speed? (A) dirty porch (B) clean porch
answer:
B

question:
Sentence: Dom and Brian race their fast cars down a quarter mile stretch of road. Dom's car is faster than Brian's. Question: Who wins the race? (A) Brian (B) Dom
answer:
B

question:
Sentence: A bag of trash blows a little ways across the parking lot. Then it reaches a sidewalk. The bag blows all the way away from the building. Question: Which is less bumpy? (A) parking lot (B) sidewalk
answer:
B