ITIL® Foundation – Exam Test – Q255

What BEST describes the value of service operation to the business?

A. It supports the creation of a portfolio of quantified services
B. It ensures IT services are continuously aligned to business requirements
C. It defines the control of service assets and configurations
D. It reduces the duration and frequency of service outages 

D. It reduces the duration and frequency of service outages 

It was before C. but I corrected it after a few people told me that the correct questions must be D.
Reference: Pultorak Official Course 55011A ITIL Foundation book, page 70.