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.

Sentence: Sam is skating outside. He glides across the dirt with no problem, but falls when he skates on gravel. Question: Which ground has less friction? (A) dirt (B) gravel
B

Sentence: Kevin took a plane from NY to Chicago while Esther took a plane from NY to LA which takes longer at the same speed. Question: Who travelled further? (A) Kevin (B) Esther
A

Sentence: After he finished washing dishes, Bill threw a wet sponge at his brother across the room at his brother Ben, hitting him in the face. Ben picked up the sponge and threw it back at Bill, but it didn't reach Bill. It dropped to the floor a foot in front of Bill. Question: Which brother has less muscle strength in their arm? (A) Bill (B) Ben
A