Which of the following TOC procedures best tests inventory costs recorded correctly? (Hint: Think of the specific audit objective of valuation) a. Compare inventory on hand with amounts shown in perpetual inventory records. b. Compare the classification of a sample of inventory into raw materials, work-in-progress, and finished goods. c. Analyze cost accounting records and cost variance report for allocation of materials, labor, and overhead. d. Inspect perpetual inventory records for obsolete, slow-moving, or excess quantities