Final answer:
The scope of practice is set out in legal regulations, which delineate professional boundaries and ensure safe and legal service provision. Correct option is D.
Step-by-step explanation:
The scope of practice for professionals is typically set out in legal regulations. These regulations are developed at the state or national level and provide clear guidelines on what a professional in a specific field can and cannot do within the confines of their profession.
This ensures that services are provided safely and legally. For example, in the medical field, these regulations would detail what procedures a nurse vs. a doctor can perform. The correct answer to where the scope of practice model is set out is D) Legal regulations.