The demand for subassembly S is 100 units in week 7. In addition to 100 units of S, there is also a demand for 20 units of U, which is a component of S. The 20 units of U are needed for maintenance purposes. All these units are needed in week 6. Please view the following product structure and the time-phased product structure. The time-phased product structu The product structure V Level 0 T s W X s T TO U12) 1 Y I Z ul 2 V) Wz) Xu Y2) 23) Time in weeks What is "Order release" of U? Select one: O a. Week 3: 200; Week 4: 20 ob. Week 3: 200 O c. Week 4: 200 od Week 4: 200; Week 5: 20 O e. Week 5: 20 What is the "Order release" of item X? Select one: O a. Week 2: 100 O b. Week 3: 100 O c. Week 4: 100 od. Week 2: 400; Week 3: 40 O e. Week 3: 400; Week 4: 40 Which of the following is correct? Select one: O a. 200 Ws and 400 Ys should be released in Week 1. o b. Only 400 Ys should be released in Week 1. O c. No items should be released in Week 1. O d. No items should be released in Week 2. O e. No items should be released in Week 5