(a) There are three main approaches to the classification of costs in a manufacturing entity. Identify the elements of each classification giving appropriate examples. (6 marks) 2 (b) Briefly explain the main stages that are involved in the acquisition of raw materials by a manufacturing entity. Clearly specify the necessary documents for facilitating the process. (10 marks) (c) With appropriate examples, briefly explain how the ABC approach to inventory works. (4 marks) (Total = 20 marks)