You Were to Meet an International Client at 6:30 P

You were to meet an international client at 6:30 p.m. She has still not arrived, and it is 7:00. You should

A) Leave, since she probably forgot the appointment.
B) Wait if you can, because it may be acceptable in her culture to be late.
C) Leave a note that explains that it is an American habit to be on time.
D) Wait if you can, and show up late to your next appointment with her.
E) None of the above.