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: Jim could run twice as fast as his sister Jen. They had to deliver some urgent vaccines to the next town to stop the spread of a dangerous virus. Question: Who should run with the vaccines in order to get them there in a shorter amount of time? (A) Jim (B) Jen
Example Output: B

Example 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
Example Output: A

Example Input: Sentence: Hulk is the strongest being in the universe. The Hulk and Black Panther have a friendly bet. Who can throw a large boulder the farthest. Question: Who wins this clash of the superheroes? (A) Black Panther (B) Hulk
Example Output:
A