The following tables are the Bill of Material (BOM) for product A. Table Q10(a): BOM product A Product A (Lead time for product A is 2 weeks Component Quantity Lead Time (unit) B 3 2 weeks C 1 1 week D 3 1-week Component Table Q10(b): BOM component B Component B Quantity (unit) Lead Time X 2 1 week Y 2 1 week Component Table Q10(c): BOM component C Component C Quantity Lead Time (unit) U I 2 weeks V 4 2 weeks Table Q10(d): BOM component D Component D Component Quantity Lead Time (unit) Y 5 1week V 2 weeks a) Analyze the above tables and draw the product structure tree (4 marks) b) Outline the Gross Material Requirements Plan for product A and its component together with the Order Release Dates. Please note that the Gross Requirement for product A is 100 units at week 10. (6 marks)