The correct answer is C. Familiarize a patient with procedures, and anything in their environment that may be new. A nursing assistant can help meet a patient's need for safety and security by ensuring that the patient is aware of procedures and any changes in their environment. Removing unfamiliar objects, visitors, and personnel from a patient's room may not always be possible or necessary. Similarly, removing unfamiliar food items from the menu or familiarizing the patient with medical journals may not directly address their need for safety and security.