Forecasted demand for radiators starting in week 4 is 250, 375, 320, 280, 500, 400, 350, 420. There is no on-hand inventory or scheduled receipts. Lead time is 3 weeks. The setup cost is $300, and the holding cost is $0.6 per week a. (10) What is the adjusted EOQ lot release plan using the Wagner Whitin approach for dynamically changing lot sizes and its associated cost? b. (10) What is the lot release plan using the Wagner Whitin optimal approach and its associated cost?