{"answers": "B", "options": ["m : the blue one is the most expensive .", "m : the red one is the most expensive .", "m : the green one is the most expensive .", "m : the red one is the most cheap one ."], "article": "m : this book with a green cover is $ 20 and the one with the blue cover is $ 15 more , and the red one is twice as expensive as this one . f : i like the one with the blue cover but i ca n't afford it right now . sorry .", "id": "train_5390"}