{"answers": "C", "options": ["m : you 're going to xiamen by bus . it would be a long trip .", "m : train is safe and fast . enjoy your winter vacation in xiamen .", "m : of course , train is the best option to go to xiamen .", "m : have you bought the ticket since you decide to fly to xiamen ?"], "article": "m : mary , how are you going to xiamen for the summer vacation ? f : i 'm going by train .", "id": "train_5801"}