Final answer:
The correct answer is D. ITIL. ITIL is a framework for IT service management and it defines five core activities associated with IT service management.
Step-by-step explanation:
The correct answer is D. ITIL. ITIL, which stands for Information Technology Infrastructure Library, is a framework for IT service management. ITIL defines five core activities associated with IT service management, which are service strategy, service design, service transition, service operation, and continual service improvement.