The customer takes responsibility for the outcomes of service consumption, so option C is correct. In ITIL, the customer is the person or organization that defines requirements and is accountable for the outcomes enabled by the service. This is different from the sponsor, who authorizes budget, and different from users, who interact with the service directly. The service provider is responsible for delivering and supporting the service, but it cannot fully control the consumer’s outcomes because those outcomes also depend on how the service is used within the consumer’s environment. This distinction is important in service relationships because value is co-created, not simply delivered one-way. By placing accountability for outcomes with the customer, ITIL reflects the shared nature of value creation and the need for active participation on both sides.