单项选择题

Patient: Excuse me, miss. I made an appointment to 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