Please solve the table in part c show how to get calculations WITHOUT EXCEL!

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 $9.$ 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:

b$)$ Choose the correct time$-$phased structure.

A$.$ B$.$ B$.$

Q

$$ A$.$ C$.$

D$.$

c$)$ Develop a net material requirements plan for $F($enter your responses as whole numbers$).$

$\backslash$table$[[$Item$,,$Week,,$\backslash$table$[[$Lead Time$],[($weeks$)]]],[,2,3,4,5,6,7,8,9],[$F$,$Gross req,,,,,,,,,$2],[$On hand,,,,,,,,$],[$Net req,,,,,,,,$],[$Order receipt,W$,,,,,,,],[$Order release,,,$|,,,,,]]$

A horizontal line labeled Time in weeks, marked with $8$ ticks from left to right. From the left, the ticks are labeled $2,3,4,5,6,7,8,$ and $9.$ There is a horizontal line segment from $7$ to $9$ labeled as stepper. stepper has three branches labeled A$,$ B$,$ and C$.$ A horizontal line segment from $4$ to $7$ is labeled A and placed above stepper. A horizontal line segment from $4$ to $7$ is labeled B and is in line with stepper. A horizontal line segment from $4$ to $7$ is labeled $C$ and placed below stepper. A has $2$ branches, labeled $D$ and F$.$ A horizontal line segment from $2$ to $4$ is labeled $D$ and placed above A$.$ A horizontal line segment from $2$ to $4$ is labeled F and placed below A$.$ B has $2$ branches, labeled E and F$.$ A horizontal line segment from $2$ to $4$ is labeled E and placed above B$.$ A horizontal line segment from $2$ to $4$ is labeled F and placed below B$.$ C has $2$ branches, labeled D and E$.$ A horizontal line segment from $2$ to $4$ is labeled D and placed above C$.$ A horizontal line segment from $2$ to $4$ is labeled $E$ and placed below $C.$

$\backslash$table$[[$More Info$],[$Item$,\backslash$table$[[$Lead$],[$Time$]],\backslash$table$[[$On$-$Hand$],[$Inventory$]],$Components$],[$Stepper$,2,10,$