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: Jim ran over a nail on his bicycle and got a flat tire. David ran over the same nail in his car and his tire didn't get flat. Question: Why did Jim get a flat tire but David did not? (A) Jim weights more than David (B) Jim's tire was thinner
[A]: A


[Q]: Sentence: A black hole is smaller in size than the sun. Question: Which will have the strongest gravity? (A) Sun (B) Black hole
[A]: A


[Q]: Sentence: Eddy and Norma are running.  They are running at the same speed, but Eddy started running before Norma. Question: If they stop at the same time, who will have run farther? (A) Eddy (B) Norma
[A]:
B