It Q&M Management Refers to the Comprehensive Management of IT

It Q&M management refers to the comprehensive management of IT software and hardware operating environments (such as software environment and network environment) , IT service systems, and IT Q&M personnel by using related methods, methods, technologies, systems, processes, and documents, in IT O&M, which of the following events needs to be handled immediately?

A) Prompt event
B) Debugs events
C) Incident event
D) Early warning Event