The following information is available from the general ledger of Bart Company on March 31: It is determined that on March 31, 1,800 units remain on hand. Determine the total cost of the goods sold for March and the total cost of the ending inventory units on March 31, assuming that Bart Company uses: A. First-in, First-out Costing (FIFO) B. Last-in, First-out Costing (LIFO) C. Weighted Average Costing