Use the information below to answer the following questions. The following units of an inventory item were available for sale during the year: Beginning inventory First purchase Second purchase Third purchase 10 units at $55 25 units at $60 30 units at $65 15 units at $70 The firm uses the periodic inventory system. During the year, 60 units of the item were sold. The value of ending inventory using FIFO is R Oa. $1,250 Ob. $1,350 Oc. $1,150 Od. $1,375