Because of the Nature of Vendor-Managed Inventory

Because of the nature of vendor-managed inventory,

A) retail buyers and planners no longer need to monitor inventory levels and place orders.
B) DCs need to run around the clock as deliveries arrive after hours and on holidays.
C) there are many delays in replenishment as it's not a collaborative approach.
D) third party logistic companies have become necessary.
E) EDI is now obsolete.