instruction:
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.
question:
Sentence: The ranger and the rustler both were riding horses that galloped at the same speed.  The rustler left an hour before the ranger. Question: Who has traveled further? (A) the ranger (B) the rustler
answer:
the rustler


question:
Sentence: A golf ball has a smaller mass then a baseball. Question: Which item has a weaker gravitational field? (A) golf ball (B) baseball
answer:
golf ball


question:
Sentence: A jackfruit experiences low friction on a red surface and high friction on a purple surface. Question: Which surface is smoother? (A) red surface (B) purple surface
answer:

red surface