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.

[EX Q]: Sentence: Mary's kitchen floor is slicker then her hallway floor. She was feeding her dogs one day and some kibble slid across both surfaces. Question: Which surface caused the kibble to heat up less? (A) kitchen floor (B) hallway floor
[EX A]: B

[EX Q]: Sentence: Mike is standing closer to a lantern then to a streetlight. Question: Which light source seems brighter to him? (A) lantern (B) streetlight
[EX A]: B

[EX Q]: Sentence: Jane tested a tennis ball on two different surfaces, observing the different results. First, she skidded a tennis ball across a slick hard court, and then across a shaggy grass court. Question: Skidding produces more heat on which surface? (A) hard court (B) grass court
[EX A]:
A