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.

[Q]: Sentence: Alice is playing ball with her young sister. One of them is having trouble throwing the ball far enough to be caught. Question: Which person is likely to have a harder time? (A) Alice (B) Little Sister
[A]: A

[Q]: Sentence: A halter sliding across a barn floor gets hotter then one sliding across a field. Question: Which surface forces the halter to travel at a lower rate of speed? (A) barn floor (B) field
[A]: B

[Q]: Sentence: Ferrari's are lightweight super cars. Question: If a Ferrari was to race a Bulldozer which vehicle would accelerate slower? (A) Bulldozer (B) Ferrari
[A]:
B