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 comet has been flung to the center of the solar system between the Sun and Mercury. The Sun is magnitudes larger in terms of mass than is Mercury. Question: Which body has the higher amount of gravitational pull and will pull the comet into its orbit? (A) The Sun (B) Mercury

Ex Output:
The Sun

Ex Input:
Sentence: Two Amish couples are getting ready to leave the grocery store. They load their groceries into each one of their carts. Each cart has one horse pulling it and they are equally strong. Horse one has to carry 10 pounds more food than Horse 2. Question: Which one will be slower to accelerate? (A) horse one (B) horse 2

Ex Output:
horse one

Ex Input:
Sentence: A skateboard wheel gets hotter when rolling over a gravel driveway compared to rolling over a dirty path. Question: Which surface is providing more friction? (A) gravel driveway (B) dirty path

Ex Output:
gravel driveway