{"answers": "C", "options": ["f : the three books will cost $ 3 in total .", "f : i 'm afraid your the dvd will cost $ 2 to borrow .", "f : it will cost $ 1 to borrow the dvd for three days .", "f : you do n't have to pay $ 1 otherwise you do n't return the dvd back on time ."], "article": "f : so that 's two books you 'll borrow today ? m : yes . that 's right . oh , and this dvd , too . f : ok , the books are free , but the dvd costs $ 1 to borrow . m : that 's fine . when do i have to return the books and the dvd ? f : the books are due back next monday . the dvd must be returned in 3 days . m : so the books must be returned in 6 days and the dvd in 3 days ?", "id": "train_513"}