The correct answer is C. Planning and Scheduling . Operator Driven Reliability makes operators active participants in equipment care, early abnormality detection, inspection, cleaning, lubrication checks, and defect reporting. That immediately creates work demand. If planning and scheduling are weak, operator findings become unplanned backlog, duplicate requests, frustration, and eventually loss of confidence in the ODR program. Operational Excellence is broader, and Asset Management is also broader, but neither directly processes operator-identified defects into executable work. Planning and Scheduling is the practical work-management foundation that converts findings into scoped, prioritized, resourced, scheduled, and completed maintenance tasks. Without it, ODR becomes a reporting exercise instead of a reliability improvement mechanism. In CRL Work Execution Management, execution discipline matters as much as identification of work. IDCON’s operator-based reliability material emphasizes finding problems, prioritizing repairs through a work order system, and then planning and scheduling them, which supports Planning and Scheduling as the required enabling program.