A Chief Financial Officer of a start up online Used cars selling firm named XYZ (where customers can buy online and get delivered in 3 days) has hired your consultancy and asking for an opinion on which costing system (process costing/job order costing) to be implemented at his business. He needs to know the distinguishing features of each of the above two costing systems. List three questions or three considerations that would be key to land him on a right decision on choosing an effective costing system for his firm. Which among those two outweighs more benefits over the other listing 4 reason?