Which statement best defines a backorder?

• A. A price reduction
• B. A product delivered after hours
• C. A replacement item issued due to damage
• D. An unavailable product on a vendor's delivery invoice

Answer: (D)

Backorder means an item that was requested isn’t in stock right now and can’t be shipped immediately. The item is on order with the supplier and will be sent later when inventory is replenished, often shown on the vendor’s delivery paperwork as unavailable until it can be fulfilled. This is different from a price reduction (discount), a delivery that happens after hours (timing of delivery rather than stock status), or issuing a replacement due to damage (a substitute for a damaged item).