instruction:
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.
question:
Sentence: A stick of gum that is slid across a classroom desk travels pretty slow compared to a stick of gum that is pushed across a home office desk. Question: Which surface is the most rough? (A) classroom desk (B) home office desk
answer:
B


question:
Sentence: John is flying across the country in a plane. Janet is walking across town. Question: Who is likely to have gone further after an hour? (A) John (B) Janet
answer:
B


question:
Sentence: Maria and Dave were excersizing.  Maria walked around the track for ten minutes.  Dave did jumping Jacks for ten minutes, then ran for twenty five minutes. Question: Who sweat more? (A) Maria (B) Dave
answer:

A