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: Marla is running around the track, while her mom lags behind pushing the baby's stroller. Question: Who take a longer time to make a lap? (A) Marla (B) her mom

Ex Output:
her mom


Ex Input:
Sentence: Two people were driving to a destination. One person was driving a tank and the other person was driving a car. Question: Which thing was fastest to speed up? (A) The tank (B) a car

Ex Output:
a car


Ex Input:
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 Output:
Lisa