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: A speed boat and a row boat take off from a dock. The row boat is barely moving, while the speed boat zooms off at a quick pace. Each boat stops at the same time. Question: Which boat is closer to the dock it left from? (A) row boat (B) speed boat
Example Output: B

Example Input: Sentence: John stands on 10 inch thick ice and one inch thick ice. Question: On which type of ice is John least likely to break? (A) 10 inch thick ice (B) 1 inch thick ice
Example Output: B

Example Input: Sentence: Dave notice that when taking batting practice the baseball moves slower on the natural grass of the team's practice field than on the artificial grass of the stadium. Question: Which surface has more resistance? (A) the artificial grass or (B) the natural grass
Example Output:
A