W: You’d better put a notice here for the class tomorrow.
M: I don’t think it’ll be ever seen by anyone. All the students are gone.

What does the man mean（）

A. It’s useless to put a notice there. Because all the students have left the school.
B. It’s quite necessary to put one because the students will see it.
C. It is useless to have a class tomorrow, because all the students will go home.
D. All the students will see the notice for tomorrow’s class.