Final answer:
A nurse following Lillian Wald's teachings would focus on safe and sanitary baby and child care, echoing Wald's emphasis on preventive care, hygiene, and community health.
Step-by-step explanation:
A nurse providing public health education based on the teachings of Lillian Wald will most likely discuss safe and sanitary baby and child care. Lillian Wald was a pioneer in public health nursing and the founder of community nursing. She advocated for health education and nursing services in schools and communities, emphasizing the importance of preventive care and hygiene. Her work largely focused on the health of mothers and children, advocating for policies and educational programs that support childcare, fight disease, and promote overall community health.