{"answers": "C", "options": ["f : you ruined me ! i will call the police .", "f : last time you said you would repair this machine . next time you 'd better keep your promise .", "f : i accepted . but a product of poor quality should be removed from sales list .", "f : sorry for selling this low-quality product for you , sir ."], "article": "f : i bought this cd in your shop last week , but it suddenly did n't work yesterday and i believed it was not caused by human error . m : sorry . i will change it for you .", "id": "dev_794"}