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


[Q]: Sentence: Neptune has a greater mass then Pluto. Question: Which planet emits stronger gravitational waves? (A) Neptune (B) Pluto
[A]: Neptune


[Q]: Sentence: Two identical cars attempt to accelerate as fast as possible. Question: If one car is empty and one car is full of bricks, which one will accelerate more slowly? (A) Empty car (B) Full car
[A]:
Full car