Which of the following description of supply chain management is true?

A、Averyclearandeffectivesupplychaininvolvescollaborativeworkbetweenrolesandsystems.;
B、Supplychainmanagementemphasizestheindependentoperationofeachunit.;
C、Supplychainmanagementaimstominimizecustomervalueandpublicizetheproduct.;
D、Successfulsupplychainmanagementmaylowertheefficiencyofthemovementandstorageofmaterials.