Identify the correct description of a business service.
A. It is a service that is closely aligned with the goals of the business.
B. It is metadata about an external service interface that enables Oracle Service Bus to integrate with the external service.
C. It is programmable entity that enables Oracle Service Bus to connect to a Wide variety of interfaces.
D. It is a complicated object that often takes days or weeks to implement, but it is highly scalable and reliable after it is complete.