{"answers": "D", "options": ["m : why do you think it is time-saving of coming back by coach ?", "m : why do you think it is comfortable of coming back by train ?", "m : why do you think it is expensive of coming back by coach ?", "m : why do you think it is comfortable of coming back by coach ?"], "article": "m : do you mind coming back by coach instead of by train ? f : no , we do n't mind at all . it takes a lot longer , but it 's very comfortable and it 's much cheaper .", "id": "train_6800"}