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 Moon is less massive than the Earth. Question: On which would the gravity be lower? (A) Moon (B) Earth
Example Output: B

Example Input: Sentence: Jim's garden has less friction then his field. Question: Which surface gives a bumpier ride when a tomato is rolled across it? (A) garden (B) field
Example Output: A

Example Input: Sentence: There were two dogs barking on my block: my dog who was next to me and the dog farther down the street. Question: Which dog sounded quieter to me? (A) my dog (B) my neighbor's dog
Example Output:
A