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.

Sentence: Laura and Sean are running on the tracks. Sean needs to stop running half way through and walk the rest. Question: Who ends one round around the track the fastest? (A) Laura (B) Sean
Laura

Sentence: Pushing a safety pin into thin paper is easier then pushing it into thick paper. Question: Which paper will allow the safety pin to plunge into it at a faster rate of speed? (A) thick paper (B) thin paper
thin paper

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

Jim