Required information [The following information applies to the questions displayed below.] Givoly Inc. uses a periodic inventory system. At the end of the annual accounting period, December 31 of the current year, the accounting records provided the following information for product 2: Units 6,300 Unit Cost $13 Inventory, December 31, prior year For the current year: Purchase, March 5 Purchase, September 19 Sale ($30 each) Sale ($32 each) Operating expenses (excluding income tax expense) 11 7 18,300 9,300 8,500 15,300 $393,000 3. Which inventory costing method may be preferred for income tax purposes? Which inventory costing method may be preferred for income tax purposes