57.We have to inform you that the model in question has already been discontinued. (譯成中文)　
(A)您所詢問的模型已寄出，就此通知　
(B)有疑問的模型已不再能繼續使用，就此通知　
(C)該機種已停產，就此通知　
(D)有問題的機種已經停產，就此通知。