Read the dialogue below:
Guest: "Good morning. I'd like to know more about the historical sites tour. What does it include?"
Receptionist: "Good morning. Our historical sites tour includes visits to the ancient castle, the Roman amphitheater, and the old city walls. It lasts approximately 4 hours and departs at 9 AM."
What additional information did the receptionist provide about the tour?
A) The price of the tour and lunch options.
B) The tour guide's name and contact.
C) The duration of the tour and its departure time.
D) Other available tours and their destinations.