A、  B、  C、  C题目是A or B的句型，也就是提出选择项的问句。此类问句不可以像(A)一样用yes或no来回答。(C)选择了后者，因此是正确答案。(B)使用了题中的file，是误导选项。

Would you prefer a window table or a table in the center?
(A) Whatever comes first.
(B) I placed it by the window this morning.
(C) They said they would send out the mail.

Should I have someone bring you the file or will you pick it up yourself?
(A) Yes, Michael brought it in this morning.
(B) I think I misplaced the file somewhere in the office.
(C) I will come over after lunch.