A、This apple pie tastes very good. B、His mother likes the pie very much. C、This pie can’t match his mother’s. D、His mother can’t

W: I found a diamond ring in the rest room this morning.
M: If I were you, I would turn it in to the security office. It is behind the administration building.
Q: What does the man suggest the woman do?

W: What do you think of the apple pie? I made it myself.
M: Very delicious indeed. Even my mother’s cannot match this.
Q: What does the man mean?