A manufacturer keeps its finished inventories in a warehouse, which serves three downstream retailers. Assume that the manufacturer's warehouse has an initial inventory of 3000 items and a minimum order quantity of 500 units. The lead time between the manufacturer and the manufacturer's warehouse is one week. Below is the DRP workbook Assume that the manufacturer's warehouse has planned for a safety stock of 200 units. Fairly assign the remaining inventory of week 10 of the manufacturer's warehouse to the three retailers. Note: perform your available inventory calculations for the retailers based on their week 10's remaining inventory from part a; daily usage calculations should be performed according to the average usage during the 10-week period in the DRP workbook. Review the uploaded DRP Workbook and use Distribution Requirement Planning (DRP) to determine a replenishment schedule between the retailers and the manufacturer.