5. Which of the following is NOT a periodexpense in amanufacturing firm? A. administrative expenses B. selling expense C. R&D expenses D. cost of goods sold 6. A company is comparing the cost of two products determined under a traditional costing system and an activity-based costing system. Let's assume the production process is very lengthy and complicatedfor both products. What can you conclude? A. The activity-based costing system is probably more accurate than the othersystem. B. It is unknown which system is better. C. Both costing systems provide accurate measures of costforeach product. D. The traditional costing system is probably more accurate than the other system. 7. Activity-based costing systemsshould be adopted when A. a company has a simple manufacturing process B. indirect costs represent a small proportion of a product'stotal costs C. more diversity in product mix offered to customers D. a company makes one simple product 8. When comparing traditional costing systems to activity-based costing systems, the analysis reveals that A. low volume products are overcosted with traditional costing systems B. high volume products are overcosted with traditional costing systems C. high volume products are undercoste dwith traditional costing systems D. more complex products are overcoste dwith traditional costing systems