a. What are the six cost categories that are important in managing goods for sale in a retail company? 1. 2. 3. 4. 5. 6. b. Classify the following items under one of the six cost categories: a. costs of obtaining purchase approvals b. costs resulting from embezzlement by employees c. internal failure costs d. opportunity cost of the investment tied in inventory e. costs associated with storage f. costs of lost sales as a result of not having an item requested by a customer g. freight-in charges h. special processing costs , costs of wages for work-in-process inspections j. costs that result from misclassifications and clerical errors