The following units of an inventory item were available for sale during the year: Beginning inventory 9 units at $48 First purchase 19 units at $53 Second purchase 23 units at $59 Third purchase 18 units at $58 The firm uses the periodic inventory system. During the year, 49 units of the item were sold. The value of ending inventory using LIFO is Oa. $1,447 Ob. $1,231 c. $1,015 O d. 5432