Urgent math needed asap look at the attached photo. the graphic shows a schedule network diagram for a 1967 corvette restoration project. what is the duration of the critical path? question 4 options: 12 days 27 days 29 days 30 days

Fourth option: 30 days

Step-by-step explanation:

We three path to complete the project:

Path A:

A1 → A2 → A3

10 days → 8 days → 9 days = 27 days

Path B:

B1 → B2 → B3

2 days → 7 days → 3 days = 12 days

Path C:

C1 → C2 → C3

10 days → 8 days → 12 days = 30 days

Then the duration of the critical path is 30 days, we can't conclude the project until each path has finished