Which of the following principles addresses professional behavior in accountancy?

The principle that specifically addresses professional behavior in accountancy is grounded in the notion of maintaining a standard of conduct that is ethical and appropriate within the profession. Professional competence and due care ensure that accountants possess the necessary skills and knowledge to perform their duties effectively and responsibly. This principle emphasizes the importance of acting in a manner that upholds the reputation of the profession, meets legal requirements, and satisfies stakeholder expectations.

While integrity and confidentiality are critical aspects of professional behavior, they focus on honesty and the protection of client information, respectively. Integrity ensures that accountants conduct themselves in an honest and principled manner, while confidentiality emphasizes the necessity of safeguarding sensitive client data. Equality, on the other hand, is not directly related to the principles governing professional behavior in the context of accountancy.

Thus, professional competence and due care encompasses a broader range of responsibilities that contribute to maintaining high standards of professional behavior, making it the most relevant principle in this context.