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: A halter sliding across a barn floor gets hotter then one sliding across a field. Question: Which surface forces the halter to travel at a lower rate of speed? (A) barn floor (B) field

Ex Output:
barn floor


Ex Input:
Sentence: A grocery bag experiences more resistance sliding across a store floor then across a house floor. Question: Which floor will force the grocery bag to move slower across it? (A) house floor (B) store floor

Ex Output:
store floor


Ex Input:
Sentence: Tony is taking a trip to Florida.  He goes by plane and returns by bus. Question: What trip took less time? (A) the trip to Florida (B) the trip back

Ex Output:

the trip to Florida