How is a power user of an IT asset and service management system defined?

A.
A user with the highest level of authorization to access the system.

B.
A user who is responsible for management of the system administration team.

C.
A user who is an expert in programming additional features to the system which will be used by other
users.

D.
A user who has the ability to use advanced features of the system which are beyond the abilities of regular
users.