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 mass of Mars is greater then that of Venus. Question: Which planet emits stronger gravity? (A) Mars (B) Venus
Example Output: B

Example Input: Sentence: Christine is making a toy for her cats to play with. She has a blue hose and red hose that she wants to hang something from to occupy the cats. The blue hose is very stiff while the red hose is springy. Question: Which hose should she use if she wants to be more confident that the cats won't snap the hose? (A) blue hose (B) red hose
Example Output: A

Example Input: Sentence: To save money, the contractor stopped buying the costlier wall supports he was required to use and started using some cheaper ones instead. As a result, several roofs collapsed. Question: Which wall supports were thinner? (A) The expensive wall supports were thinner (B) The cheaper wall supports were thinner
Example Output:
A