You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the **incorrect** answer (return the string of the incorrect option, not A/B).

Ex Input:
Sentence: Mary and Tim were going on a trip.  They were both driving their cars.  Both were driving at the same speed and left at the same time.  However, Mary stopped at four in the afternoon, while Tim drove until it was dark. Question: Who drove farther? (A) Mary (B) Tim

Ex Output:
Mary


Ex Input:
Sentence: Our earth is one of the largest objects in space, but nothing compared to the sun. Question: Which object has stronger gravity? (A) Earth (B) Sun

Ex Output:
Earth


Ex Input:
Sentence: Jim wears a thick Kevlar vest. Jack is just wearing a cotton shirt. Question: Which top would stop a bullet? (A) Kevlar (B) Cotton

Ex Output:

Cotton