{"answers": "B", "options": ["f : really . i should check my eyesight to avoid mistakes again . you are right .", "f : really ? yes , can i apply for the international dial service now ?", "f : really . yes , i should unsubscribe international dial service now .", "f : i ca n't cut down the number of overseas calls . i have to make lot of international calls ."], "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 . m : alright madam , tell me your phone number and i 'll check it for you . f : my number is 63513516 . m : thank you . please hold on for a moment . f : alright . m : hello ? f : yes , i 'm still here . m : well , there does n't seem to be any problems with your account . the billing is accurate . you must have overlooked the international call you made to europe . f : let me see . right . i 'm sorry , it 's my mistake . but it is still very expensive . m : well , why do n't you apply for the international dial service ? it 's free of charge .", "id": "train_113"}