In comparing the FIFO (first-in, first-out) and weighted-average methods for calculating equivalent units

A. The two methods will give similar results even if physical inventory levels and the production costs (material and conversion costs) fluctuate greatly from period to period.

B. The weighted-average method is more precise than the FIFO method because the weighted-average method is based only on the work completed in the current period.

C. The FIFO method is better than the weighted-average method for judging the performance in a period independently from performance in preceding periods.

D. The FIFO method tends to smooth costs out more over time than the weighted-average method.