C. Budiman owns a pet shop called Petman. He sells variety of cat foods, supplements, toys and grooming accessories. Budiman is developing a new system for point of sales and cash receipt. The information in Table 1 below shows activities planned for the new system development. Task Predecessor Time (Weeks) None 6 B None 3 B 2 D AC 3 E AC 4 F D 2 G EF 5 H BG 3 1 H 2 Table 1: Tasks planned for new system development He has been thinking to finish the project faster by expediting time where costs are applied. Table 2 below shows the information. Task Estimated Duration Crash Time Cost per Week (RM) 6 3 600 B 3 2 100 2 2 400 D 3 2. 400 E 4 2 200 F 2 2. 200 G 5 3 300 H 3 2 400 1 2 2 300 Table 2: Information on crash time and associated costs However, Budiman could only keep his expediting expenses to RM350 per week. If he goes over the RM350 per week limit, it would not be worthwhile. Required: a) Draw a PERT Network diagram. (6 marks) b) Identify the critical path. (4 marks) Identify THREE (3) tasks that cannot be expedited at all because they are at their crash times already. (3 marks) c) d) Identify THREE (3) tasks that cannot be expedited because their expediting cost exceeds the weekly limit. (3 marks) Calculate the expediting process to shorten the project time. (4 marks)