Tomasino's inventory records show the following data at January 31: Beginning inventory Jan. 1 Jan. 10 purchase Jan 22 purchase 90 units at $9 per unit 280 units at $10 per unit 120 units at $11 per unit At January 31, 200 units are still on hand. What is the cost of the ending inventory at January 31 if Tomasino uses the FIFO method? O A. $1,800 O B. $1,690 O c. $1,910 O D. $2,120