What is the difference between a process owner and a process manager?

A.
a process owner is responsible for the effectiveness of the process and a process manager is responsible for the realization of the process

B.
a process owner is a director and a process manager is a manager

C.
a process owner must have a Manager’s Certificate and a process manager must have a Practitioner’s certificate

D.
a process owner will work directly with business leadership and the process manager only works within IT