a$)$ Complete the product structure

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

A$.$

B$.$

A$.$

c$)$ Prepare a gross requirements plan for Alpha $($enter your responses as whole numbers$)$

c$.$

$\backslash$table$[[$Week$,1,2,3,4,5,6],[$Required Date,,,,$,$A$,],[$rder Release,,$,,,,],[$Required Date,,,$,,$D$,],[$Order Release,,,,,,$]]$