What is the primary difference between designing a task service and an orchestrated task service?

A: A task service does not need to be part of a service composition, whereas an orchestrated task service always does. B: The scope of logic encapsulated by a task service tends to be smaller than an orchestrated task service. C: A task service is delivered as a single-purpose service, whereas an orchestrated task service is expected to be agnostic and therefore multi-purpose. D: None of the above.