Q1,Q2,Q3 – 450 words ($7.5)Q1. Reflect on Chapter 10:Project Scheduling: Lagging, Crashing, and Activity Networks .Identify what you thought was the most important concept(s), method(s), term(s), and/or any other thing that you felt was worthy of your understanding. Also, provide a graduate-level response to each of the following questionsQ2. In crashing a project, we routinely focus on those activities that lie on the critical path, not activities with slack time. Explain why this is the case.Q3. Identify and discuss some of the problems or dangers in using project networks. Under what circumstances can they be beneficial, and when can they be dangerous?——————————————————————————————————————————————-Q4. Activity 12 in Separate document – 2 full pages(excluding references) ($10)——————————————————————————————————————————————-Giving the following information, answer the questionsDevelop the network activity chart and identify the critical path for a project based on the following information.Redraw the activity network as a Gantt chart.What is the expected duration of the project?Activity Expected Duration PredecessorsA 5 days —B 6 days AC 2 days AD 4 days AE 6 days B, CF 6 days D, EG 12 days FH 4 days GI 6 days FJ 7 days H, I