If the Patient Calls with a Billing Problem But, in Fact

If the patient calls with a billing problem but, in fact, the proper fee was charged, the best approach is to ____.

A) tell the patient that the bill is correct
B) speak to the physician before responding to the patient
C) explain each individual charge to the patient but tell him the payment is due
D) tell the patient that healthcare is expensive
E) adjust the amount anyway, because the customer is always right