{"answers": "B", "options": ["m : not yet . plane is fast and as safe as traveling by train . but i prefer trains .", "m : not yet . but it 's very comfortable and fast by air .", "m : no . so it 's very comfortable and fast by train .", "m : no . it is fast but terrible by air ."], "article": "f : can you feel that the plane 's taking off now ? m : no , nothing at all . it 's smooth and quiet . f : how do you like traveling by air ? m : oh , it 's speedy and very comfortable . i must say , i prefer it to traveling by train . f : do you ever suffer from airsickness ?", "id": "train_3296"}