听力原文：W: Friendship Department Store. May I help you?M: Yes, could you tell me when the store closes today?W: We close at 7:30. M: I see. And when do you open?W: Nine o'clock on the weekend. M: Fine. Thank you very much.What's the probable relationship between the two speakers?A．Receptionist and customer.B．Waitress and customer.C．Salesperson and customer.D．Nurse and patient.
A.
What's
B.Receptionist
C.
B．Waitress
D.
C．Salesperson
E.
D．Nurse
F.