Question: whats the correct answer and pleasr show work. Question 9 1 pts A company must perform a maintenance project consisting of seven activities. The activities,

whats the correct answer and pleasr show work.

Question 9 1 pts A company must perform a maintenance project consisting of seven activities. The activities, their predecessors, and their respective time estimates are presented below: Designations Immediate Predecessor Time in Days Activity Break down both Machines None 3 B |A 3 A 3 D Clean machine 1 Clean machine 2 Reset Machine 1 Reset Machine 2 Re-Calibrate both Machines B 4 E C N F D and E 1 Final test G F 1 Using CPM, which activities have slack greater than zero in this project? O A,B,C OBD o Only C CE O FG

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