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: To save money, the contractor stopped buying the costlier wall supports he was required to use and started using some cheaper ones instead. As a result, several roofs collapsed. Question: Which wall supports were thinner? (A) The expensive wall supports were thinner (B) The cheaper wall supports were thinner
[A]: A


[Q]: Sentence: A zebra is forced to run at a slow pace in a zoo, but can run at a fast pace in a field. Question: Which surface has less resistance? (A) field (B) zoo
[A]: B


[Q]: Sentence: A speedboat and a barge start at the same origin and travel across a 2 mile channel on the same path to the same destination. Question: Which boat will arrive first? (A) Barge (B) Speedboat
[A]:
A