An organization is configured as an enterprise and a seller, but it does not maintain inventory. The inventory is mainta

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An organization is configured as an enterprise and a seller, but it does not maintain inventory. The inventory is maintained externally. When a customer places an order for five units of item X, the system needs to determine whether five units of the item are available to fulfill the demand. How can a solution designer enable Sterling Order Management to fetch the availability picture maintained by the external system?

A. Implement YFSGetExternalInventoryUE to fetch the inventory picture of the external system.
B. Implement INVGetDemandCorrectionsUE to fetch the inventory picture of the external system.
C. Enable the ATP rules to determine the availability of a product item for current and future demand.
D. Invoke syncInventoryDemand API to synchronize the inventory picture between the external system and the Sterling Order Managementdatabase.