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Consider the following table of precedence relationships for a portion of a house building project: Task A Prepare Site B Install Rough Plumbing Pour Concrete Foundation D Concrete Curing Time E Preassemble Wall Frames F Erect Wall Frames G Install Roof H Install Wiring I Install Exterior Siding 3 Install Insulation K Hang Drywall L Windows M Paint Interior N Paint Exterior 0 Level Yard P Landscape Yard Duration Estimates 2 days 3 days 4 days 4 days 8 days 3 days 4 days 6 days 3 days 4 days 4 days 3 days 4 days 5 days 5 days 3 days Immediate Predecessor(s) None Prepare Site Install Rough Plumbing Pour Concrete Foundation None Preassemble WF, Cure Concrete Erect Wall Frames Install Roof Install Roof Install Exterior Siding Install Insulation, Install Wiring Hang Dry Wall Install Windows Install Exterior Siding Cure Concrete Level Yard a. Draw a network diagram for this project and identify the critical path. How many days to complete this project? b. If the project needs to be completed by 1 Mar 2022, what would be the latest date to start this project? Assuming the workers work Mon to Fri and they do not work on public holidays. c. Is it correct to say: if the materials needed for preassembling the wall frames (Task E) are not available until the 5th day of the project, the project will be delayed by 5 days? Why or why not? d. If the project follows early start time and each task requires two workers, what is the maximum number of workers working together on a particular day? Explain your answer. e. Assume manpower is not an issue. From a practical point of view, would you recommend Task O to follow the early start time? Why or why not