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

A$.$

B$.$

c$)$ Develop a net material requirements plan for $F($enter your responses as whole numbers$).$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 $10.$ Subscripts indicate quantity required for each parent. Assume$$ lot$-$for$-$lot ordering.b$)$ Choose the correct time$-$phased structure.

A$.$

B$.$

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