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: Two identical cars attempt to accelerate as fast as possible. Question: If one car is empty and one car is full of bricks, which one will accelerate more slowly? (A) Empty car (B) Full car
Output:
A