You are currently working as a planning engineer for a construction company. Your company is currently in the planning stage for a small renovation project, consisting of 5 activities as shown in Table 3 below. However, due to the current limitation of MCO in the area, there will be a limited resources of workers for the project, where only 13 workers are allowed in the site on any given day. As the planning engineer, you have been tasked to optimize the number of workers for the project Table 3: The detail of the activities for the small renovation work Duration (days) Activity Dependence Code START A B B START B D C E A END D, E 0 8 5 10 5 10 0 No. of workers needed 0 5 6 8 8 6 0 a) Develop the precedence diagram of the work using AON and determine the critical path and the duration of the project. (2 marks) b) Develop the Gantt Chart for the activities and optimize the number of workers using resource levelling techniques. (6 marks) c) Determine the revised final duration of the project based on the optimized number of workers. (2 marks)