Detailed Instructions: 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.
Q: Sentence: A tank driving over a battlefield experiences greater resistance then one rolling around in a hanger. Question: Which surface offers a less bumpy ride for the tank? (A) battlefield (B) hanger
A:
hanger