You are given a sentence, a question and two answer options. Your task is to write down the index ('A' or 'B') of the **incorrect** option for the given question.

Example Input: Sentence: Mike knows that a train is slower then a plane. Question: If he rides both vehicles for 40 minutes, which will have taken him a lesser distance? (A) train (B) plane
Example Output: B

Example Input: Sentence: Two horses were out on a hot day in a sunny pasture that didn't have any shade for two hours. When their owner came by to take them to a shaded pasture, his white horse was covered in sweat and his bay horse was dry. Question: Which of the horses had been taking it easy? (A) the white horse (B) the bay horse
Example Output: A

Example Input: Sentence: A toilet paper roll sliding along a living room floor gets hotter then one sliding across a bathroom floor. Question: Which surface has the most friction? (A) bathroom floor (B) living room floor
Example Output:
A