Firm Tezla produces the product QuickCar. Annual demand for QuickCar is 600 units per year on a continuous basis. The product has inventory holding costs of $30 per unit per year and order costs of $300 per order. It takes 30 days to receive a shipment after an order is placed. Calculate the economic order quantity (EOQ). O a. 44 units O b. 77 units O c. 60 units O d. 110 units