Acme Purchase Narrative Acme Needs to Purchase More Copper to Make Widgets. Acme

Acme Purchase Narrative
Acme needs to purchase more copper to make widgets. Acme submits an order to the copper vendor online. When Acme receives the copper shipment, the receiving department processes the shipment. Acme receives an invoice and processes the bill. The corresponding database tables are updated.
-What are the datastores (database tables) in the Acme Purchase Narrative?

A) Vendor, Purchase order, Purchase order line, Item
B) Vendor, Invoice, Invoice line, Item
C) Vendor, Sales order, Sales order line, Item
D) Vendor Purchase order, Accounts payable, Item