Instructions: 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.
Input: Sentence: The tire of a unicycle heats up more when ridden through the street compared to when it is ridden through the road. Question: Which surface will let the unicycle go a greater distance? (A) road (B) street
Output:
B