a) Table 1 below is the information available about a large project. Draw the network diagram for this project and complete the table 2. Determine the project's critical path and duration of the expected completion time of the project. Activity Description Immediate Time Predecessor(s) (Weeks) 5 B 4 B 6 D B 6 E B 4 F D 2 B 6 7 1 EG 8 B 4 K 8 L F.H.K 4 M L 6 N 1 8 o N 2 N 5 C 9 R M.O.P. 3 S R 7 Table 1 (8 marks]