process. Activities A B Q DEF G H Consider the list of activities and predecessors that are involved in forging Description Forgings transported from forge shop Inspection of incoming forgings Forgings moved and placed in storage Forgings transported to machine shop Milling operation Drilling operation Inspection of machining operations Cleaning operation Transport to storage Assembly Duraiton Immediate Predecessor 2 4 10 6 4 5 7 9 876 A B CCCD E, G F H, I Cost Per Day Maximum Possible of Reducing Reduction in the Duration of Activity 5 15 21 7 16 23 10 15 8 25 Duration (days) 1 2 L 1 3 15 3 2 1 1 2 a) Draw a project network, determine the critical path and project duration. b) Which activities can be delayed without delaying the entire project? If yes, how many days the activities can be delayed? c) Assume that the project must be completed in M days. Formulate an IP that can be used to minimize the cost of meeting the project deadline.