C) ABC Manufacturing Company purchases 9,000 parts of a machine for its annual requirement, ordering one month's usage at a time. Each part costs Kshs. 20. The ordering cost per order is Kshs. 15 and the carrying charges are 15% of the average inventory
per year. You have been asked to suggest a more economical purchasing policy for the company. What advice would you offer
and how much would it save the company per year? (10 Marks)