{"answers": "B", "options": ["m : let me see , so if i pay by quarter , it cheaper than pay by year . it can save me 15 pounds !", "m : that means if i pay by year , it will save me 15 pounds a year . sounds good .", "m : wow , that will save me 25 pounds if i pay by month ! that 's a real bargain .", "m : sounds good ! i just pay 35 pounds for the whole year ! i 'd like to join this library ."], "article": "m : excuse me , can i join the library ? f : are you a student of our college ? m : no , i 'm not . but i hear that it 's open to the public . f : that 's right . m : ok. does it cost anything to join ? f : well , it 's free for students of our college while it is 125 pounds per year or 35 pounds per quarter for the public .", "id": "train_1689"}