1.Critically differentiate between the three cost-accounting systems job-order costing, activity-based costing, and process costing. In particular, describe the basic approach, the fields of application, and the main cost flows of the individual systems. (3 x 10 points)

2. Under decision aspects, the distinctions between incremental, opportunity, and sunk costs play a special role. Characterize the three cost concepts and choose suitable application examples to justify your characterization. (3 x 5 points)

descibe properly .