You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the **incorrect** answer (return the string of the incorrect option, not A/B).
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Question: Sentence: A car company wants to start producing a new car. Their two options for the material of the body of the car are steel or carbon fiber. Question: If everything else about the car is the same, which car will accelerate slower? (A) the steel car (B) the carbon fiber car.

Answer: the carbon fiber car

Question: Sentence: Jim could run twice as fast as his sister Jen. They had to deliver some urgent vaccines to the next town to stop the spread of a dangerous virus. Question: Who should run with the vaccines in order to get them there in a shorter amount of time? (A) Jim (B) Jen

Answer: Jen

Question: Sentence: Mary was practicing karate by trying to break objects. She broke the plywood easily with her hand, but couldn't break the wooden stud no matter how hard she hit it. Question: Which object is the thicker one? (A) plywood (B) wooden stud

Answer:
plywood