Section 1: Solve all the following network optimization problems (Total: 21 Marks) Q1. ILO's A1, B2, C1 [Total Marks 4] 1. A large Southeast city is requesting federal funding for a park-and-ride project. One of the requirements in the request application is a network plan for the design phase of the project. Sophie Kim, the chief engineer, wants you to develop a proj- ect network plan to meet this requirement. She has gathered the activity time esti- mates and their dependencies shown here. Show your project network with the activity early, late, and slack times. Mark the critical path. 4 Marks ID Description Predecessor Time A B D E F G H None A A B, C, D Survey Soils report Traffic design Lot layout Approve design Illumination Drainage Landscape Signage Bid proposal 44 5 20 30 5 80 15 30 25 15 10 J F, G, H, 1