Consider three parts ordered from a single supplier. The data for the items are given in the following table. Assume that there are 52 weeks in one year and $10 is the basic cost of placing an order with one item involved. The inclusion of each additional item costs $2. The holding cost is $0.2 for one dollar of the item tied up in inventory for one year. What is the approximate time interval (in weeks) between replenishments so that total cost is minimized? a. 0.0951 b. 3.8791 c. 0.0776 d. 4.0360 e. 4.9431