On scratch paper, build the following network diagram ...What is the critical path?

On scratch paper, build the following network diagram • Activity A (2 days) can start right away. • Activity B (3 days) and Activity C (4 days) can start after Activity A is finished. • Activity D (5 days) can start after Activity B is finished. • Activity E (1 day) and Activity F (4 days) can start after Activity C is finished. • Activity G (2 days) can start after Activity E is finished. • Activity H (3 days) can start after Activity F is finished. • Activity I (2 days) can start after Activity D, Activity G and Activity H are finished. • After Activity I is finished, the project is complete. What is the critical path?
Correct Answer : B