Tess Company's inventory records show the following data for the month of May: Units Unit Cost Inventory, May 1 200 $2.00 Purchases: May 8 200 3.00 May 15 100 4.00 The company uses a periodic inventory system. A physical inventory on May 30 shows 150 units on hand. Assuming FIFO (First-In-First-Out) inventory costing calculate the cost of goods sold. a. S980 b. S1.100 C5850 d. 5700