Question 2 - Electronic Contractor (20 Marks) An electronic contractor company requires an inventory of a certain printed circuit board at its central warehouse for supplying repair offices. The annual demand for these printed circuit boards is 15000 units. The company estimates its annual holding cost for this item to be $25 per unit. The cost to place and process an order from the supplier is $75. Assume the company operates 300 days per year, and the lead time to receive an order from the supplier is two working days. a) Find the economic order quantity, b) Find the annual holding costs. c) Find the annual ordering costs