{"answers": "D", "options": ["f : it 's not that slow for it only takes 50 minutes to get there .", "f : you mean i will spend 9 hours on bus ? you are kidding .", "f : i ca n't waste two and half an hour on bus to oxford !", "f : oh , my god . two and half an hour by bus is so long !"], "article": "f : excuse me . i need to get to cambridge today . m : would you like to go by train or by bus ? f : i am not sure . which one is better ? m : the bus is cheaper , but also slower . it will take about 2 and half hours .", "id": "train_3625"}