K You need to schedule 10 units of product Alpha for delivery in 6 weeks. Three units of D and 2 units of F are required for each Alpha. The lead time for Alpha is 1 week. Lead time for D is 1 week, and lead time for F is 2 weeks. a) Complete the product structure Alpha D(2) F(2) b) Choose the correct time-phased product structure below. OA O B. O C. OD. F A F D D 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 Time in weeks Time in weeks Time in weeks Time in weeks c) Prepare a gross requirements plan for Alpha (enter your responses as whole numbers) Week 1 2 3 4 5 6 Required Date A Order Release Required Date D Order Release