Given a reliable construction Co. project. Activity Activity Description Immediate Estimated # of Predecessor Workers Durations (weeks) 2 A 1 B A 4 3 B 10 4 D 6 5 E 4 3 F E 5 4 G D 7 7 Excavate Lay the foundation Put up the rough wall Put up the roof Install the exterior plumbing Install the interior plumbing Put up the exterior sliding Do the exterior painting Do the electrical work Put up the wallboard Install the flooring Do the interior painting Install the exterior fixtures Install the interior fixtures H 9 2 I 7 2 E, G F, I J J 8 3 K 4 8 L J 5 2 M H 2 2 N KL 6 2 a. Draw the network given above. b. Draw a Gantt Chart and determine what is the project completion time? c. Use Resource Leveling Techniques learned to get the best project schedule without exceeding 10 workers