Which of the Following Actions Is Acceptable as an Exception

Which of the following actions is acceptable as an exception to a nurse's obligation regarding confidentiality?

A) Reporting certain diseases to public health authority
B) Discussing a patient's care with someone who does not know the patient
C) Leaving printouts of lab reports on the desk in the physicians' lounge as a convenience
D) Discussing a patient's condition in a public place as long as the patient's name is not mentioned