Which of the following is the BEST indicator of the effectiveness of IT governance in...

 Value delivery is the best indicator of the effectiveness of IT governance in an enterprise because it measures how well IT supports the business objectives and creates value for the stakeholders. The other options are important aspects of IT governance, but they are not as comprehensive as value delivery. References := ISACA, CGEIT Review Manual, 7th Edition, Chapter 1: Framework for the Governance of Enterprise IT, Section 1.2: Principles of IT Governance, p. 9.