The son of a nursing home resident asks a nurse: "What is the significance of being certified in gerontology? I see that you are, but not all of the nurses are." What response best answers the family member's question?

A. "National certification is only available to nurses who have a Baccalaureate degree in nursing.": Nurses with an associate degree can also be eligible for certification depending on experience. B. "National certification in gerontology is required for all nurses who have worked in this setting for 2 or more years.": Certification is not required but is a voluntary demonstration of expertise. C. "Only advanced practice nurses, like nurse practitioners, are certified in gerontology.": Both RNs and APRNs can obtain certification in gerontological nursing. D. "National certification as a gerontological nurse is a way to demonstrate special knowledge in caring for older adults.": Certification validates specialized knowledge and commitment to quality geriatric care.