Horizon Cellular manufactures cell phones for exclusive use in its communication network. Management must select a circuit board supplier for a new phone soon to be introduced to the market. The annual requirements (D) are 60,000 units and Horizon's plant operates 250 days per year. The data for three suppliers are in the following table. (i) Which supplier and shipping quantity will provide the lowest total cost for Horizon Cellular? Using and a shipping quantity of units is the lowest cost alternative, with annual total costs to Horizon Cellular of $ (Enter your response as an integer.)