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: The Sun is close to the Earth, but the stars are farther away. Question: Which appears smaller? (A) Sun (B) stars
Example Output: A

Example Input: Sentence: Karen was running late so she knew she should take the red bus instead of the blue one. Question: Which bus is more likely to be the express bus? (A) The red bus (B) The blue bus
Example Output: B

Example Input: Sentence: Joe and Bob are seeing who can lift the most weight. Joe's arms are much thinner than Bob's are. Question: Who will lift the most? (A) Joe (B) Bob
Example Output:
A