Please answer all parts ya :)

Question 4 Based on the network logic diagram (AOA: Activity-On-Arrow format) in Figure 1 time in a day), C|7 3 Figure 1 - Network logic diagram (AOA) (a) Calculate the ES, EF, LS, LF, and the slack as tabulated in Table 2. (10 marks, C3) (b) Using the network in Figure 1 above and the additional information in Table 3 below: i. Calculate the crash cost slope per day. (5 marks, C3) ii. Which activities should be crashed to meet the project deadline of 14 days at a minimum cost? (3 marks, C3) ili. Calculate the new cost of the project. (2 marks, C3) Table 2: ES, EF, LS, LF, and Slack Activity LS ES EF LF Slack A B D E (Student are required to copy Table 2 in the answer booklet) Table 3: Normal & Crash Duration, Periods Activity Normal Crash Cost (RM) A 4 3 Normal 300 250 400 B 3 1 Crash 500 325 550 250 200 7 4 D 5 3 150 E 1 1 200