A nurse is interviewing a client who was recently admitted. The client tells the nurse, "I have something to tell you, but you can't tell anyone else." Which of the following responses should the nurse make?

A. The nurse should not promise complete confidentiality because information may need to be shared with the treatment team to ensure safety and appropriate care. This response is honest, ethical, and maintains professional boundaries. B. While clients can express preferences about information sharing, the nurse cannot allow the client to control what must legally or ethically be shared with the provider. C. This response is vague and authoritarian. It does not promote trust or clarify professional responsibility. D. Promising secrecy is inappropriate and unethical. Nurses must share relevant information with the healthcare team and are mandated to report safety concerns.