Which of the Following Is True Regarding Phase 4,Fully Integrated

Which of the following is true regarding Phase 4,Fully Integrated Supply Chains,of supply management strategy development?

A) The only impetus for change is the demand for change by management.
B) Non-value-added activities such as purchase order follow-up and expediting have been automated.
C) Limited cross-functional integration is occurring.
D) Purchasers begin to pursue strategic supplier relationships that focus on customer needs and the organization's competitive advantage.
E) Execution of supply management strategy takes place primarily at the business unit or local level.