Read the following conversation and answer the question.

M: Is this your umbrella, Miss?

W: Oh yes, it is. Thank you. I was looking for it just now.

M: You look a bit familiar to me. I wonder if we have met somewhere before?

W: Have we?

M: May I ask where you live?

W: Just two blocks away, in that tall building.

M: That's it. I live there too. I am on the 8th floor.

W: It's a small world. We live on the same floor.

M: I'm Adam Smith. May I know your name?

W: I'm glad to know you. Mr. Smith. I'm Lily Brown.

Question: What can we learn from the conversation? 

- The man is careless.

- The man has seen the woman before.

- They are next door neighbors.


The man has seen the woman before.