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: A rat and a mouse each set out walking from the high school to the hospital. The rat was speedier than the mouse. Question: Who took more time to arrive at the hospital? (A) the rat (B) the mouse

Ex Output:
A


Ex Input:
Sentence: Melissa and Sharon stood in the yard with a fence a good distance away. Melissa had beaten Sharon in arm wrestling earlier. Question: Who will throw a rock that makes it over the fence? (A) Melissa (B) Sharon

Ex Output:
B


Ex Input:
Sentence: Mary needs to put a piece of plywood between her bed frame and her mattress.  Her 2 children like to jump on the bed in the morning. Question: Which piece of plywood would be more likely to break when jumped on? (A) the 1/2 plywood slab or (B) the 1 plywood slab?

Ex Output:

B