Given the task definition and input, reply with output. 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: Stanley and Kayle are driving their cars at 40 mph down the road. Stanley stops his car to answer his phone while Kayle continues driving. Question: Who drives the  shortest distance? (A) Stanley (B) Kayle.
Stanley