{"answers": "C", "options": ["f : e-books are easy to break and the cost of maintenance is high in the long term .", "f : it can store a lot of e-books , but i do n't think the storage is large .", "f : it really has a large storage capacity .", "f : even with the popularity of e-books , many people still prefer paper books . we are far from being able to reduce the use of paper ."], "article": "f : what 's that , bred ? m : it 's my new e-book reader . i 'm just downloading some new books onto it . f : i have n't bought 1 yet . i still prefer a printed book . m : but if you have n't tried it yet , how do you know you would n't like it better , fiona ? this e-book reader can store over 10,000 digital books . imagine trying to carry an entire library from place to place .", "id": "train_61"}