Project management processes can be categorized into five groups. The process groups are linked by the results they produce. The outputs of one often become the input to another. What is the most appropriate sequence of the five project management process groups?
(A) Initiating - executing - controlling - planning - closing
(B) Initiating - planning - controlling - executing - closing
(C) Initiating - controlling - planning - executing - closing
(D) Initiating - planning - executing - controlling - closing