Refer to Table1. This table shows normal durations, costs, and crash durations and costs for a series of activities that comprise the main equipment design and installation process. Table 1 Activity, normal and crash durations and costs for the entire design and installation process. Note: Crash duration represents the minimum duration where an activity is speeded up as much as possible. The crash cost represents the increased costs of the activity after it has been speeded up as much as possible. Note: Where normal duration and crash duration are the same, this activity cannot be crashed. Activity Normal Duration (weeks) Crash Duration (Weeks) Normal Cost (GBP) Crash Cost (GBP) A-B 1 1 5000 5000 A-C 12 10 300000 340000 A-E 2 1 750000 950000 B-D 3 2 30000 50000 C-F 4 2 500000 580000 D-F 2 1 350000 750000 E-F 2 1 5000 10000 F-G 3 2 5000 15000 F-H 6 5 10000 70000 G-I 3 2 650000 950000 G-J 2 2 55000 55000 H-J 2 2 170000 170000 H-K 8 6 20000 120000 I-L 3 2 90000 100000 J-N 3 2 15000 30000 K-M 10 9 150000 180000 L-N 2 1 10000 20000 M-N 4 3 450000 460000 A] Draw a schedule showing the process critical path and durations B] Assume the whole process has to be completed within 36 weeks. Calculate the most cost effective way of completing the process within this time, giving the cost increase associated with this crash sequence. You should start with the activity with the lowest cost per unit crash time and progress to the activity with the highest cost per unit crash. C] Discuss alternative approaches you might take in making allowance within the contract for works where the time and cost required cannot be accurately estimated before work is carried out