单项选择题

Speaker A: What is the deadline for the term paper, sir? Speaker B: ______
A.What do you mean by 'deadline'?
B.Since it should be 10 pages long, you can hand it in next week.
C.Your term paper must be typed and double spaced.
D.You must remember that it's not my policy to accept late papers.

A.What
B.Since
C.
C.Your
D.
D.You
E.