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: Carrie visits Dina at her house. Dina rides her exercise bike while Carrie sits and watches television. Question: Which of the two will have a smaller pool of sweat at their feet when they are done? (A) Carrie (B) Dina.
Output:
B