The ITIL core is structured around?
a) An Operations Lifecycle
b) An IT Management Lifecycle
c) A Service Lifecycle
d) An Infrastructure Lifecycle

非常好，谢谢

来自专家林祖宁的解答

The ITIL Core: best practice guidance applicable to all types of organizations who provide services to a business.
The ITIL Complementary Guidance: a complementary set of publications with guidance specific to industry sectors, organization types, operating models, and technology architectures

ITIL Core 包括五本书
Service Strategy
Service Design
Service Transition
Service Operation
Continual Service Improvement.

SS、SD、ST、SO、CSI
看看名字，这么多S，答案呼之欲出啊！

各位童鞋，不要只是给答案，要给答题思路阿！