The planning department of an electronics firm has set up the activities for developing and production of a new MP3 Player. Given the information below, develop a project network using Microsoft Project. Assume a five-day workweek and the project starts on January 4, 2017.B1.Draw a network diagramme for the above project, and calculate the ES, EF, LS, LF and slack for each activity. (10 marks) B2.Identify the critical path for the project network (2 marks) B3.Using the above information and the project network diagramme you have developed, develop a Gantt chat for the project. (10 marks) B4.Among the project activities, which activities have free slack? (3 marks) B5.How sensitive is the network schedule? Explain (5 marks)