Which one of the following statements is true? The weighted-average method of process costing does not consider the degree of completion of beginning and ending work-in-process inventories. The FIFO method of process costing separates the work done during the current period from the work done before the current period. The cost per equivalent unit is higher under the weighted-average method compared with that under the FIFO method of process costing. The FIFO method of process costing smooths the input price fluctuations over different periods