Which of the following should play a leading role in overseeing ihe ethical atmosphere of...

The board of directors plays a leading role in overseeing the ethical atmosphere of an organization. They are responsible for establishing and promoting the organization’s values and ethical standards. The board sets the tone at the top and ensures that senior management implements policies and procedures that support ethical behavior throughout the organization. This oversight includes monitoring compliance with ethical standards and addressing any ethical issues that arise.

The IIA’s International Professional Practices Framework (IPPF) - Practice Guide on Ethical Leadership.

COSO’s Enterprise Risk Management – Integrating with Strategy and Performance.