【单选题】

Patient: Excuse me, miss. I made an appointment an see Dr. Smith at 4 o'clock this afternoon. My name is Ralph Williams.
Nurse: Let me check, ... yes, Mr. Williams. ______. You may go in now.
A．Dr. Smith is hoping you now

B．Dr. Smith is wishing you now
C．Dr. Smith is expecting you now
D．Dr. Smith is waiting you now