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Part $1$

Product A is made from components B and C$.$ Item$$ B$,$ in$$ turn, is made from D and E$.$ Item C also is an intermediate$$ item, made from F and H$.$ Finally, intermediate item E is made from H and G$.$ Note that item H has two parents. The following are item lead$$ times:

Item

A

B

C

D

E

F

G

H

Lead Time$($weeks$)$

$1$

$1$

$3$

$3$

$4$

$2$

$7$

$5$

Part $2$

a$.$ What lead time$($in weeks$)$ is needed to respond to a customer order for product$$ A$,$ assuming no existing inventories or scheduled$$ receipts? $1313$ weeks. $($Enter your response as an integer$.)$

Part $3$

b$.$ What is the customer response time if all purchased items$($i$.$e$.,$ D$,$ F$,$ G$,$ and$$ H$)$ are in$$ inventory? $66$ weeks. $($Enter your response as an integer$.)$

Part $4$

c$.$ If you are allowed to keep just one purchased item in$$ stock, which one would you$$ choose