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: Mike was making a basket using various types of wood. He bent some thick wood and it didn't break, but when he bent some thin wood it snapped in half. Question: Which wood wasn't as strong? (A) thick wood (B) thin wood
Example Output: A

Example Input: Sentence: All massive objects like planets have very strong gravitational pulls. The Sun is larger than Neptune. Question: So which object in space has a stronger gravitational pull? (A) Sun (B) Neptune
Example Output: B

Example Input: Sentence: Zachary likes to push his toy car around the house. His mom notices his car rolls slower on the carpet in the dining room than on the hardwood floor in the nursery. Question: Which surface has the greatest resistance? (A) the hardwood floor or (B) the dining room carpet
Example Output:
A