Which statement about services is CORRECT?

Services delivered between departments or business units within the same organization are classified as internal services, not external services.

In ITIL, internal services refer to supporting services used by the IT organization to underpin its own operations, and these can be sourced from external suppliers who deliver them to the internal IT department. This distinguishes them from services the IT provider delivers outward to the business or to external customers.

While external services are indeed associated with external customers, this option incorrectly frames the relationship and does not accurately describe the ITIL classification being tested.

Internal services are consumed within the organization by IT or business units - delivering services to external customers defines external services, not internal ones.