instruction:
You are given a sentence, a question and two answer options ('A' and 'B'). Your task is to find the **incorrect** answer (return the string of the incorrect option, not A/B).
question:
Sentence: A jackfruit experiences low friction on a red surface and high friction on a purple surface. Question: Which surface is smoother? (A) red surface (B) purple surface
answer:
purple surface

question:
Sentence: Jason has just woken up from a coma and needs to learn to use his arms and legs again. He goes to the park to throw a ball with his friend Andy. Question: Who can throw the ball harder? (A) Jason (B) Andy
answer:
Jason

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:
Maria