5. Use this inventory information for the month of June to answer the following question. June 1 Beginning inventory 30 units @ $10 S Purchase 60 units @ $18 14 Sale 50 units 21 Purchase 40 units @ $22 Assuming that a perpetual inventory system is used, what is ending inventory cost under the FIFO method? (4 Points) (Please show your computation in the blank space below) a. S1,390 I b. $1,600 C. $1,200 d $840