David: Excuse me, what time is it?
Emily: It's a quarter past nine. Why are you asking?
David: My dentist appointment is at half past nine, and I don't want to be late. I need to leave now.
Emily: You still have fifteen minutes, you'll make it!
Diyaloğa göre David'in dişçi randevusu saat kaçtadır?
A) Nine o'clock.
B) A quarter past nine.
C) Half past nine.
D) A quarter to ten.