(6 mks) 62. (a) Discuss the role of the project manager during project implementation. (b) Network analysis is one of the most common tools used by project managers. Draw a network for the below activities. (10 mks) Activity Description A Drawing Plans Predecessor None Duration in Years 5 B Buying machinery None 1 C Ground Excavation A 2 D Hire Contractors A 3 E Approval of Plans A 2 F Hire Key staff C 3 G Market research D 4 H Staff training B, E 2 I Pricing H 1 J Final Report F, G, I 1 (c) Explain one advantage of each of the following tools used in project management. (i) Gantt chart (ii) Work breakdown structure (2 mks) (2 mks)