(All sales and purchases are on credit.) Indicate in each of the spaces provided the effect of the described errors on the various elements of a company's financial statements. Use the following codes: O = amount is overstated; U = amount is understated; NE = no effect. Assume a periodic inventory system. Accounts Accounts Inventory Sales Costs of Receivable Payable Goods Sold A. Goods in transit shipped "f.o.b destination" to us by a supplier were recorded by us as a purchase, but were not included in our ending inventory. B. Goods in transit shipped by us "f.o.b. shipping point" to a customer by us as a sale and were included in our ending inventory. C. Goods were shipped to us by a supplier but were incorrectly excluded from our ending inventory. Also, the purchase was incorrectly not recorded by us. D. Goods sent by us on consignment basis to another company were not included in our inventory count and were recorded as our sale.