A managed service provider manages an organization's suppliers, provides some delivery functions to the organization,...

This is an example of service integration as a service (D). The ITIL 4 Specialist: Create, Deliver and Support study guide (Section 3.1.4) defines this model as: "A service integration approach where a third party coordinates and manages services, including supplier relationships and integration, on behalf of the organization." This matches the scenario where the provider handles supplier management and service coordination. Option A (retained service integration) involves internal retention; option B (single provider) implies full delivery; and option C (service guardian) is not a recognized ITIL model. The guide further notes: "This model enhances value streams by ensuring seamless service delivery across multiple parties."