The product structure. LT=Lead time in weeks Bracket LT=1 Base (1) Spring(2) LT=1 LT=1 Clamp (1) Housing (2) Clamp (4) LT=1 LT=2 LT=1 Handle (1) Casting (1) Bearing(2) Shaft(1) Handle (1) Casting (1) LT=2 LT=4 LT=1 LT=1 LT=2 LT=4 Print Done As the production planner for Xiangling Hu Products, Inc., you have been given a bill of material for a bracket that is made up of a base, 2 springs, and 4 clamps. The base is assembled from 1 clamp and 2 housings. Each clamp has 1 handle and 1 casting. Each housing has 2 bearings and 1 shaft. There is no inventory on hand. Click the icon to view the product structure Your boss at Xiangling Hu Products, Inc., has just provided you with the schedule and lead times for the bracket. The unit is to be prepared in week 12 The lead times for the components are bracket (1 week), base (1 week), spring (1 week), clamp (1 week), housing (2 weeks), handle (2 weeks), casting (4 weeks), bearing (1 week), and shaft (1 week). a) Choose the correct time-phased product structure for the bracket OA . OC. OD hande handle damp damp casting base beating brack housing shaft spting handle clamp casting 6 7 8 9 10 11 12 handle damp Casting base bearing brack housing shaft spring hardie clamp casting handie damp casting basd bearing brack housing shaft spring haridle clamp casting casting base bearing brack housing shaft spring haridle clamp casting 5 6 7 8 9 10 11 12 3 5 6 7 8 9 10 11 12 5 6 7 8 9 10 11 12 b) In what week do you need to start the castings? The castings need to be started in week (enter your response as a whole number) Click to select your answeris)