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.

Ex Input:
Sentence: Asteroids can be huge. But not as big as the sun. Question: Which has a weaker gravity? (A) Asteroid (B) Sun

Ex Output:
Asteroid


Ex Input:
Sentence: Owen and Jerry are both snails. They both move at the same speed but Owen travels twice as long as Jerry does. Question: Who traveled the lesser distance? (A) Jerry (B) Owen

Ex Output:
Jerry


Ex Input:
Sentence: A leather glove sliding along a door knob doesn't experience as much friction as one sliding along a grab bar. Question: Which surface will let the glove slide a greater distance? (A) door knob (B) grab bar

Ex Output:

door knob