A company has the following activities with their respective cost and drivers for a year Activity Cost Cost driver Marketing Dh160,000 Dh1,450,000 of sales Customer service 70,000 10,000 customer Order execution 5,000 200 orders Warehousing 15,000 125 product lines Required: a. Calculate the cost per unit by each activity. (2 marks) b. Explain the difference between the costs obtained from the traditional costing system and the ABC system. Which system provides a better estimate of costs? Why