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.

Ex Input:
Sentence: Jana and her mom were biking through the park.  Her mom was being more leisurely. Question: Who took longer to make a lap around the park? (A) Jana (B) her mom

Ex Output:
A


Ex Input:
Sentence: Thrusting a throwing star into yogurt heats it up less then thrusting it into jelly. Question: Which surface allows the throwing star to reach a higher top speed as it is thrust into it? (A) jelly (B) yogurt

Ex Output:
A


Ex Input:
Sentence: An airplane weighs much less then a submarine. Question: If both vehicles are accelerating, which will get up to top speed faster? (A) submarine (B) airplane

Ex Output:

A