{"answers": "B", "options": ["f : with so many errors in the fake book , why do think its still worth reading ?", "f : i agree . though the book is cheaper , it 's not worth buying .", "f : so you think the book costs less and is interesting .", "f : you 're right . your book is only 6 yuan cheaper than mine , yet it has many errors . it 's not worth buying ."], "article": "f : i bought a harry potter book yesterday . it 's 46 yuan . m : that 's so expensive . i only spent 20 yuan on it . f : really ? the price of this book is 46. is yours fake ? m : maybe . now i know why there are so many errors in it .", "id": "train_6284"}