Which of the following completes the dialogue?
Zeynep: Hello, is this the customer service?
Agent: Yes, how can I help you?
Zeynep: I have a problem with my phone bill. There is an extra charge I don't understand.
Agent: I see. __________________
Zeynep: Yes, it's 0555 123 45 67.
A)Can you please hold on for a moment?
B)Could you tell me your phone number, please?
C)Would you like to leave a message?
D)Are you calling from a landline?