{"answers": "D", "options": ["m : do you mean that the telephone call was not clear . as it department , i 'll help you to solve it .", "m : yes , your telephone line was always busy . but you still got a low bill , that 's strange .", "m : oh , you mean your telephone bill is quiet low ? how possible ?", "m : why do you think the telephone bill was not accurate ? how much is ti ?"], "article": "m : hello . this is the china telephone company . what can i do for you ? f : is this the complaints department ? m : yes , it is . f : i want to complain about the bill i received this month . i do n't think i 've made that many phone calls . have their rates gone up ? there must be a mistake in your billing .", "id": "train_111"}