Which of the following is the BEST definition of the term service management?

The ITIL Foundation definition of service management is 'a set of specialized organizational capabilities for providing value to customers in the form of services.' This definition emphasizes that service management is about organizational capabilities - skills, processes, and methods - that are purpose-built to deliver value, distinguishing it from generic management or purely operational functions.

This choice describes the concept of a system - a group of interacting or interrelated components forming a whole - which is not the ITIL definition of service management.

This choice describes a function, the management of internal organizational activities, which is narrower and does not capture the value-delivery orientation central to ITIL's definition of service management.

This choice describes an organizational unit or role structure, not the broader discipline of service management as defined by ITIL.