Final Answer:
The NASW Code of Ethics begins with the key (core) value of "service."
Step-by-step explanation:
The NASW (National Association of Social Workers) Code of Ethics is a set of guidelines and principles that guide the professional conduct of social workers. It commences with the core value of "service," reflecting the fundamental mission of social work to help individuals, families, groups, and communities in need. This core value underscores the commitment of social workers to prioritize the well-being and empowerment of those they serve.
"Service" in the NASW Code of Ethics emphasizes social workers' dedication to enhancing the quality of life and promoting social justice. It sets the tone for the ethical responsibilities that social workers bear in their roles, emphasizing the importance of providing competent and compassionate assistance to those in need.