【单选题】

You are the project manager ofAlpha Network InC、Your company is doing network planning for a major bank. You are planning to digram the activity dependancies using activity list. Which of the following is true

A、PDM is also theAO
A、diagramming methoD、
B、PDM is also theAOD、digramming methoD、
C、PDM is alsoAON digramming methoD、
D、PDM is alsoADM diagramming methoD、