TASK DEFINITION: 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.
PROBLEM: Sentence: A falcon and a bear both cross a giant field at full speed. Question: Which animal crosses the field first? (A) Falcon (B) Bear

SOLUTION: Falcon

PROBLEM: Sentence: A table is less rough then a lap. Question: Which surface will cause a napkin to heat up more when slid across it? (A) lap (B) table

SOLUTION: lap

PROBLEM: Sentence: Yolanda was driving, and she turned onto a road that ran alongside some railroad tracks. A train was moving down the tracks, going in the same direction that she was. A few minutes later, the train had passed by her and she could only see the back of the train. Question: Which vehicle had a greater rate of speed? (A) the car (B) the train

SOLUTION:
the train