The master schedule of Parsival Fabricators is designed to meet demands of 90 units of a product in week 7 of a cycle, 120 units in week 8 and 80 units in week 11. They currently have 20 units of the product in stock, but the company always keeps 10 units in reserve to cover emergency orders. Each unit of the product takes two weeks to assemble from 2 units of component B and 3 units of component C. Each unit of component B is made in one week from 1 unit of part D and three units of part E. Com