Select the TRUE statement regarding process costing. Question 7Select one: a. Because it tracks beginning inventory's actual costs of completion, the weighted-average method is the most accurate process costing system. b. Estimating the degree of completion is usually easier for conversion costs than for transferred-in costs. c. The degree of completion for conversion costs in ending work-in-process depends on the amount of direct materials used during the period. d. Estimating the degree of completion is usually easier for direct materials than for conversion costs. e. The accuracy of the completion percentages depends on the accounting system used