A client tells a nurse, "Don't tell anyone but I hid a sharp knife under my mattress in order to protect myself from my roommate, who is always yelling at me and threatening me." Which of the following actions should the nurse take?
A. Keep the client's communication confidential, but talk to the client daily, using therapeutic communication to convince him to admit to hiding the knife
B. Keep the client's communication confidential, but watch the client and his roommate closely.
C. Tell the client that this must be reported to the health care team because it concerns the health and safety of the client and others.
D. Report the incident to the health care team, but do not inform the client of the intention to do so.