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: A steel car weighs more then an aluminum car. Question: If both are racing, which will take longer to get up to top speed? (A) aluminum car (B) steel car
Output:
A