Given the following table, how many months does it take to complete the project according to the critical path analysis? What is the critical path(s)? If you increase the duration of activity D to 6 months, how does the critical path change?
Activity Predecessor Duration in Months
Start - 0
A Start 6
B A, E 2
C B 2
D C 3
E Start 1
F A, E 1
G B, F 7
Finish D, G 0