Which aspect of the NBC-HWC Code of Ethics is violated when coaching sessions are contingent on purchasing products?

The aspect of the NBC-HWC Code of Ethics that is violated when coaching sessions are contingent on purchasing products relates to the principle of promoting client autonomy and avoiding conflicts of interest. When coaching is tied to the purchase of supplements or products, it can create a situation where the coach's motivations may not align with the best interests of the client. This undermines the integrity of the coaching relationship because it suggests that the coach’s primary goal is the sale of products rather than the genuine well-being of the client.

Coaches are expected to provide support and guidance based on the unique needs of their clients without having a financial stake in the products they recommend. Ethical coaching relies on mutual trust and respect, and any form of coercion or pressure—such as making coaching services contingent upon purchasing products—disregards that foundation, potentially exploiting the client's vulnerability.

The other choices do not align as neatly with the principles outlined in the NBC-HWC Code of Ethics regarding conflicts of interest or the autonomy of the client in the coaching process. Thus, the correct answer directly addresses a clear ethical violation inherent in the business practice described.