The Nurse Is Working in the Outpatient Clinic When a Patient

The nurse is working in the outpatient clinic when a patient who has been waiting to be seen for an hour yells, "What are you people doing? I'm sick and tired of waiting!" Which response is the most therapeutic, if made by the nurse?

A) "The doctor can only do so much."
B) "Would you like a magazine?"
C) "I can see that you are frustrated."
D) "You need to be quiet!"