Refer to the following table:
Activity Predecessor Normal Time Normal Cost Crash Time Crash Slope
A - 4 30 3 10
B - 7 60 5 70
C A 1 80 1 N/A
D B 4 40 2 20
E B 5 110 2 50
F C 5 90 2 200
G D 2 60 1 30
H E 2 70 1 40
I F, G, H 2 140 2 0
Note: Crash time indicates the time it could be crashed to (e.g. A could be crashed to 3 units but