A project manager is confused about the perspective of the buyer-seller relationship in the context of project procurement management. How would your clarify this?
A. The buyer-seller relationship exists only between organizations external to the acquiring organization.
B. The buyer-seller relationship exists only between organizations internal to the acquiring organization.
C. The buyer-seller relationship is applicable only when a performing organization is involved.
D. The buyer-seller relationship can exist at many levels on one project, and between organizations internal to and external to the acquiring organization.