Which of the following is an enabler of best practice?

Standards such as ISO 20000 are sources or references that define best practice, not enablers that make it achievable.

Technology enables best practice by supplying automation, monitoring, data management, and process support tooling that allows organizations to implement frameworks like ITIL at scale. Without supporting technology, many best practices defined in service management frameworks would be impractical or impossible to sustain consistently.

Academic research is a source of best practice knowledge and theory, but it does not directly enable organizations to implement that practice.

Internal experience is an organizational source of lessons learned that informs best practice but does not function as an enabler of its implementation.