You will be given a definition of a task first, then some input of the task.
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.

Sentence: Rolling a red ball across an orange carpet makes the ball get hotter then rolling it across a blue carpet. Question: Which carpet is the most smooth? (A) blue carpet (B) red carpet
Output:
B