Required information Problem 5-2AA (Algo) Periodic: Alternative cost flows LO P3 [The following information applies to the questions displayed below] Warnerwoods Company uses a periodic inventory system. It entered into the following purchases and sales transactions for March. For specific identification, units sold include 90 units from beginning inventory, 400 units from the March 5 purchase, 110 units from the March 18 purchase, and 190 units from the March 25 purchase. a) Periodic FIFO b) Periodic LIFO c) Average Cost