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 Q]: Sentence: A weighty cement mixer and a light motorcycle are waiting at a red light. Question: When the light turns green, which accelerates more slowly? (A) cement mixer (B) motorcycle
[EX A]: cement mixer

[EX Q]: Sentence: Greg and Lisa both live 2 miles from the library. Greg takes off on foot. Lisa uses a scooter. Question: Who gets there first? (A) Greg (B) Lisa
[EX A]: Lisa

[EX Q]: Sentence: A barrel of water and a barrel of molasses are stored side by side in a warehouse. They both tip over and begin leaking their contents on the ground. The molasses runs out at a crawling pace while the water runs out at a gushing pace. Question: Which liquid will be closer to its barrel after one minute? (A) the molasses (B) the water
[EX A]:
the molasses