$14\mathrm{.}14$ A part structure, lead time $($weeks$),$ and on$-$hand quantities for product A are shown in Figure $14\mathrm{.}14.$ From the information shown, generate: a$)$ An indented bill of material for product A if $100$ units are to be produced $($see Figure $5\mathrm{.}9$ in Chapter $5$ as an example of a BOM$).$ b$)$ Net requirements for each part to produce $30$ units of A in week $8$ and $20$ in week $10$ Information for Problems $14\mathrm{.}14,14\mathrm{.}15,$ and $14\mathrm{.}16$