Which of the following is a disadvantage of the weighted-average method compared to the FIFO process-costing method? Select one: : O A. FIFO is computationally simpler B. when unit cost per input prices fluctuate markedly from month to month, its per unit cost is less representative than FIFO O C. FIFO provides better management information for planning and control purposes D. the information it provides about changes in unit prices from one period to the next is less useful than the information provided by FIFO