ITIL Best Practices Refer to the Advanced ITSM Methodology to Understand

ITIL best practices refer to the advanced ITSM methodology to understand enterprise requirements and implement sustainable management during IT service management. Which of the following is the IT service operation process in the ITIL best practice system?

A) Event management, incident management, problem management, request fulfillment, and access management
B) Incident management, problem management, service desk, request fulfillment, and event management
C) Incident management, service desk, request fulfillment, access management, and event management
D) Event management, incident management, change management, and access management