Final answer:
The coach violated the Code of Ethics by claiming to provide specific services without the necessary qualifications or training.
Step-by-step explanation:
The coach violated Code of Ethics. As an NBC-HWC (National Board Certified Health and Wellness Coach), the coach is expected to adhere to a code of ethics that governs their professional conduct. One of the principles in the code of ethics is the responsibility to provide accurate and truthful information about their services. By claiming to provide specific services like motivational interviewing, macronutrient prescription, and high-intensity interval training prescription, without the necessary qualifications or training in those areas, the coach violated the code of ethics.