In the following network, manually level your resources with a maximum of nine (9) laborers per day. Also, improve the daily resource use (start low, increase the resource use gradually until it peaks around the middle of the project, and then gradually decrease it toward the end of the project). Activity Predecessor Duration (days) Laborers A 3 2 B 4 2 A 6 4 D 9 3 E B 5 4 F B, C 7 2 G D, E, F 3 4 Prepare the following: 1. Network diagram complete with forward pass, backward pass, and total floats. 2. Gantt chart with allocated resources before manually levelling/smoothing. 3. Resource histogram before manually levelling/smoothing. 4. Gantt chart with allocated resources after manually levelling/smoothing. 5. Resource histogram after manually levelling/smoothing