Final answer:
The acceptable action for avoiding dual relationships is maintaining professional boundaries, which protects the integrity of the professional-client relationship and ensures confidentiality and consent.
Step-by-step explanation:
When it comes to avoiding dual relationships in a professional setting, the most acceptable course of action is maintaining professional boundaries. Engaging in personal relationships with clients, sharing personal information with clients, and providing financial assistance to clients, are typically considered breaches of professional conduct. In a professional environment, it is important to be open to informal conversation with colleagues, show awareness of cultural differences, and, crucially, respect subjects' rights to privacy and dignity while preserving confidentiality and seeking informed consent. Personal boundaries help protect both the professional and the client and are essential for upholding civility, cultural competence, and proper communication.