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: Nell has very thick hair; Lynn's hair is much thinner. Question: Whose hair is stronger? (A) Nell (B) Lynn

Ex Output:
B


Ex Input:
Sentence: Skippy and Finn are dogs who are running down the street. They run at the same speed. Question: Skippy stops running before Finn does, so who ran the farthest? (A) Skippy (B) Finn

Ex Output:
A


Ex Input:
Sentence: Bill Gates and Lebron James are playing a game of basketball.  Bill Gates is an old guy who doesn't work out, and Lebron James is a young sports adonis who trains daily.  Both stand at half court, but only one hits the backboard. Question: Who? (A) Bill Gates (B) Lebron James

Ex Output:

A