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 man wants to pull a car out of the mud with his truck. He has a blue chain that is larger in diameter than the orange chain he has. Question: If the man wants to be more certain the chain will have the strength to pull the car, he would choose which chain? (A) the blue chain (B) the orange chain

Ex Output:
the blue chain


Ex Input:
Sentence: A hollow cannonball and a solid cannonball made of the same material and diameter are shot with the same force from a cannon. Question: Which ball will have a lower acceleration? (A) Hollow cannonball (B) Solid cannonball

Ex Output:
Solid cannonball


Ex Input:
Sentence: The Sun is close to the Earth, but the stars are farther away. Question: Which appears smaller? (A) Sun (B) stars

Ex Output:

stars