The Acronym POSDCORB Refers to the Various Tasks Associated with the Job

The acronym POSDCORB refers to the various tasks associated with the job of a manager or executive in an organization.What are they?

A) planning, organizing, serving, directing, co-ordinating, reporting, and budgeting
B) planning, organizing, staffing, directing, co-ordinating, reporting, and budgeting
C) planning, ordering, staffing, directing, co-ordinating, reporting, and borrowing
D) planning, outlining, sourcing, directing, co-operating, reporting, and budgeting