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: Bob bought a wireless mouse and noticed that the pointer was slower to move than the wired mouse he had replaced it with. Question: Which mouse traveled fewer pixels in the same about of time? (A) the wired mouse (B) the wireless mouse
Example Output: A

Example Input: Sentence: A piece of cardboard is more flexible then a stone slab. Question: Which item will be more likely to break if bent? (A) cardboard (B) stone slab
Example Output:
A