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5. Consider the following project. Marks-10 Task Immediate Optimistic Most Predecessors probable Pessimistic Crash Normal Crash Time Cost Cost A 4 6 8 4 1000 1900 B 6 8 16 7 1000 1800 AB 2 4 6 2 1500 2700 D 8 10 24 8 2000 3200 E E 7 10 13 7 5000 8000 F E 4 6 8 4 3000 4100 G 4 6 20 5 8000 10250 H D, F, G 4 6 8 4 5000 6400 I DF 4 6 14 4 10000 12400 J H 3 4 5 3 4000 4400 K I.J 2 4 6 3 5000 5500 a. Draw a project network b. Find the critical path and expected project completion time. C. Assuming that management desire a 37 weeks project completion time. What activity should be crashed? d. Activity schedule table after crashing. e. Find total project cost after crashing