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: Jim could run twice as fast as his sister Jen. They had to deliver some urgent vaccines to the next town to stop the spread of a dangerous virus. Question: Who should run with the vaccines in order to get them there in a shorter amount of time? (A) Jim (B) Jen
[EX A]: Jim

[EX Q]: Sentence: Janet is testing how much mass objects have. She is currently testing between a metal rod and a paper crane. She drops both from six feet in the air at the same time. Question: Which has stronger gravity? (A) metal rod (B) paper crane
[EX A]: metal rod

[EX Q]: Sentence: Michael and Daphne leave the train station at the same time and begin walking home along the same route. Michael decides to stop at a friend's house along the way, while Daphne continues walking. Question: Who would end up going the smaller distance from the train station? (A) Michael (B) Daphne
[EX A]:
Michael