Requesting a meeting with the board is the most ethical course of action for the CIO who believes that a recent mission-critical IT decision by the board of directors is not in the best financial interest of all stakeholders, as it allows the CIO to express their concerns and opinions in a respectful and professional manner, and to provide relevant information and evidence to support their views. Requesting a meeting with the board also demonstrates the CIO’s commitment and accountability to the enterprise’s goals and values, and their willingness to collaborate and communicate with the board on IT governance matters123. References := CGEIT Exam Content Outline, Domain 1, Subtopic A: Governance Framework, Task 3: Ensure that stakeholder needs, conditions and options are evaluated to determine balanced, agreed-on enterprise objectives to be achieved; setting direction through prioritization and decision making; and monitoring performance and compliance against agreed-on direction and objectives.