{"answers": "D", "options": ["f : where can i find the taxi ?", "f : i take the subway to school every day .", "f : you mean i should take a bus ?", "f : thanks for the advice , i 'm definitely going to take the subway ."], "article": "f : excuse me , could you tell me how to get to the water cube from here ? m : you can take a bus or a taxi . but the traffic is very heavy at the moment . so you 'd better take the subway .", "id": "train_4557"}