Lee Ltd. has the following units and costs for the month of April. 1. Beginning inventory, April 1, 1,000 units at $20 (Cost) 2. Purchase 1, April 9, 1,200 units at $23 (cost) 3. Sold 1, April 12, 2,100 units at $40 (Retail) 4. Purchase 2, April 22, 800 units at $25 (Cost) If Lee uses a periodic inventory system, what is the cost of ending inventory under weighted average at April 30? (Note: Use four decimal places for per-unit calculations and round all other numbers to the nearest dollar.) Oa. $20,290 Ob. $22,164 Oc. $45,436 Od. $47,320