Which Organization's Culture Is NOT a Culture a Project Manager

Multiple Choice

Which organization's culture is NOT a culture a project manager has to be able to operate in or interact with?

A) The culture of their parent organization
B) The culture of government and regulatory agencies
C) The culture of vendors and subcontractors
D) The culture of the project's customer or client
E) All of these are cultures a project manager has to be able to operate in or interact with