In a perpetual average cost system (Select all that apply): a. The cost allocated to ending inventory is generally higher than it would be in a perpetual FIFO inventory system (assuming rising prices) b. A new weighted average unit cost is calculated each time additional units are purchased e Cost of Goods Sold is generally in between where it would be it perpetual LIFO or perpetual FIFO were used (assuming rising prices) d. The cost allocated to ending inventory is generally the same as it would be in a perpetual LIFO inventory system (assuming rising prices)