Lead times for item A and its components are given in the table below: Item A B C D E F Lead time 3 weeks 1 week 2 weeks 1 week 1 week 2 weeks Using the lead time information and the product structure given above, develop the gross material requirements plan with a production schedule that will satisfy the demand of 10 units of item A by week 8 (as shown in the table below). Please note that you are asked to develop the gross material requirements plan with Required date and Order release date for items A, B, C, and D only. In the table below, A, B, C, and D represent items A, B, C, and D, respectively