The most appropriate measure of delivery performance for finished goods is A, perfect order fulfillment.
Perfect order fulfillment measures the percentage of orders that are delivered to the customer without any errors, such as incorrect items, damaged goods, or late delivery.
This measure takes into account all aspects of the delivery process, including order accuracy, on-time delivery, and load efficiency.
On-time delivery (B) is important, but it does not capture the entire picture of delivery performance.
Load efficiency (C) is important for optimizing transportation costs, but it is not a measure of customer satisfaction or delivery performance.
Available-to-promise (D) is a measure of inventory availability, not delivery performance.