Draw a Critical Path Method $($CPM$)$ diagram for the project.

b$)$ Identify the critical path

c$)$ Determine the project completion time.

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Activity Immediate Predecessor$($s$)$ Time $($Days$)$

A $--9$

B A $7$

C A $3$

D B $6$

E B $9$

F C $4$

G E$,$ F $6$

H D $5$

I G$,$ H $3$