The correct components of the ITIL Value System are guiding principles, governance, value chain, management practices, and continual improvement, so option D is correct. The ITIL Value System provides the overall model for how an organization ensures its products and services create value in a coherent, aligned, and adaptable way. The guiding principles provide universal recommendations for decision-making. Governance ensures direction, evaluation, and monitoring. The value chain defines the high-level activities used across the lifecycle. Management practices provide the capabilities needed to perform work. Continual improvement ensures that the whole system evolves and remains effective over time. The other options list important concepts, but not the formal components of the Value System. ITIL uses this model to integrate governance and management into one practical framework.