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: A picture frame sliding across a dresser makes it heat up less then one sliding across a floor. Question: Which surface will the picture frame move the slowest on? (A) dresser (B) floor
[EX A]: B

[EX Q]: Sentence: An empty dump truck and a dump truck full of iron ore start towards each other, as fast as they can, from opposite ends of a long street. Question: Which truck makes it 100 feet before the other truck? (A) the empty dump truck (B) the dump truck full of iron ore
[EX A]: A

[EX Q]: 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
[EX A]:
B