Shipments of Product X from a plant to a wholesaler are made in lots of 1500 units each. The wholesaler's average demand for X is 300 units per week. The lead time from the plant to the wholesaler is 3 weeks. The wholesaler pays for the shipments when they leave the plant. What is the total of the wholesaler's current cycle plus pipeline inventories? 750 units 850 units 1650 units 1800 units