please explain step by step in order to understand the whole answer.

b) Y2 cycling has compiled the following data on the inventory items and now wants to categorize the items in image Question 3 (D) on an ABC analysis. Which products do you suggest the company should keep the tightest control over? Explain c) Y2 Cycling has been buying 2700 unit bike chain for its bicycles in an optimal way using EOQ analysis in year 2020. The supplier has now offered Y2 Cycling a discount of 5% off from the current order cost, RM 100 per order. Y2 Cycling estimates its annual holding cost is RM 25.50 per unit. The company annual working days is 250 days. The time to receive an order from supplier is four (4) working days. Compute the economic order quantity for year 2021 (demand are based on seasonal by referring to question 2b ), total annual cost, number of orders to be placed, time between orders and reorder point for the company