please explain how to develop the materials plan

Heather Adams, production manager for a Colorado exercise equipment manufacturer, needs to schedule an order for 50 UltimaSteppers, which are to be shipped in week 8. Subscripts indicate quantity required for each parent. Assume lot-for-lot ordering. This exercise contains only parts b and c Click the icon to view information about the steppers The product structure is as follows: Stepper A2) B Ca) D2) Fa) E2) Fc) DI) E(1) b) Choose the correct time-phased structure A OB. OC. OD. Q a D Q Q A Q F EA F EH E B stepper stepper B B stepper B stepper F- F D D D Ic C D C E E E E Time in weeks Time in weeks Time in weeks Time in weeks c) Develop a net material requirements plan for F (enter your responses as whole numbers) Week Lead Time (weeks) Item 1 2. 3 4 5 6 7 8 F Gross reg Jon hand Net reg 2 Jorder receipt Order release Heather Adams, production manager for a Colorado exercise equipment manufacturer, needs to schedule an order for 50 UltimaSteppers, which are to be shipped in week 8. Subscripts indicate quantity required for each parent. Assume lot-for-lot ordering. This exercise contains only parts b and c Click the icon to view information about the steppers The product structure is as follows: Stepper A2) B Ca) D2) Fa) E2) Fc) DI) E(1) b) Choose the correct time-phased structure A OB. OC. OD. Q a D Q Q A Q F EA F EH E B stepper stepper B B stepper B stepper F- F D D D Ic C D C E E E E Time in weeks Time in weeks Time in weeks Time in weeks c) Develop a net material requirements plan for F (enter your responses as whole numbers) Week Lead Time (weeks) Item 1 2. 3 4 5 6 7 8 F Gross reg Jon hand Net reg 2 Jorder receipt Order release