A)To invite the man to join them.
B)To suggest that he can make friends with them.
C)To suggest politely that he leave.
D)To encourage him to have another drink.
原文：
W: Well, Jack, I would offer you another drink but I have guests coming and I haven’t even begun to prepare the dinner. Thanks for stopping by.
M: thanks for the drink. It has been nice seeing you, too.
Q: Why did the woman mention her dinner guests.