A、Give the ring to a policeman. B、Wait for the owner of the ring in the rest room. C、Hand in the ring to the security office. D、

W: Simon, oh, well, could you return the tools I lend you for building the bookshelf last month?
M: Oh, I hate to tell you this, but I can’t seem to find them.
Q: What do we learn from the conversation?

W: I found an expensive diamond ring in the restroom 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?