{"answers": "D", "options": ["m : okay , i 'll go there on foot . it only takes 10 minutes .", "m : okay , i 'll go there by bus although it only takes 10 minutes on foot .", "m : okay , i 'll go there by taxi although it only takes 10 minutes on foot .", "m : okay , i 'll go there by taxi . because it is far from here ."], "article": "m : excuse me , could you tell me where the nearest post office is ? f : yes , walk down this road and then turn left when you get to the third crossing . you will see it not far ahead of you . m : thank you . could you give me more information ? f : of course . when you turn left , you will see a five-star hotel with a tea shop on the left . the post office is just next to it . it 's a three-storey building . m : how long will it take to get there if i walk ? f : about 30 minutes ? m : oh , that 's too long . f : uh , well , you can take bus 232 or get a taxi there . m : i think getting a taxi might be better . thanks a lot . f : you are welcome .", "id": "train_431"}