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: Abigail is very thin, and her friend Megan is muscular and broad. Both are trying to move a heavy box. Question: Which will move it first? (A) Abigail (B) Megan

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

A: Asteroid
****
Q: Sentence: Two identical trucks begin to accelerate as fast as possible. One truck is empty and one is full of bricks. Question: Which truck will accelerate more quickly? (A) Empty truck (B) Truck full of bricks

A:
Empty truck
****