When inventory prices are rising the FIFO method will generally yield a gross margin that is A. higher than the weighted average method B. equal to the gross margin of the weighted average method O c. less than the weighted average method D. similar to other methods because FIFO does not generally cause a gross margin that is different from that of any other costing method A FIFO perpetual inventory system O A. assigns the most recent costs to cost of goods sold when goods are sold B. does not match the typical physical flow of goods O c. assigns the most recent costs to ending inventory D. reports the oldest costs for ending inventory values