can you please help me with part c and d with respect to the word limits. thank you

5. Answer the following questions: (20 marks) (Note: 100 - 150 words for each of the following parts from a to C. For part d words limit should be between 200 - 225 words) a. What is meant by master budget?Why do companies prepare budgets? Explain. (6marks) b. How does marginal costing system differ from absorption costing system? (4 marks) c. What are the source documents for direct materials, direct labor, and manufacturing overhead costs for preparing a job cost sheet? (3 marks) d. How does job order cost system differ from process cost system? Write at least three examples of companies or industries of each of the system to support your answer. (7 marks)