正解:D
Collaborate and promote visibility is the guiding principle that would help the most in breaking down silos and eliminating conflicting goals. This principle encourages working together across boundaries and sharing information and knowledge with relevant stakeholders. By doing so, the organization can achieve a common understanding of the vision, objectives, and progress of the service value system. This also helps to avoid duplication of work, reduce errors, and improve efficiency and effectiveness. Collaborate and promote visibility also fosters a culture of trust, openness, and learning, which are essential for continual improvement and innovation. References:
* ITIL 4 Foundation: ITIL 4 Edition, section 4.3.4
* 6 reasons why ITIL 4's guiding principle of collaborate and promote visibility is important, section
"Collaboration and value co-creation"