Tasks	Duration (days)	Dependency
A	15	---
B	14	---
C	2	A, B
D	1	B
E	5	C, D
F	1	D
G	15	C, F
H	8	E, G
I	12	B, H
J	35	C, G, H
K	25	H, I
L	3	H, J, K

Please draw a critical path network diagram and show the dummy activities clearly (with dotted lines), then determine the critical path(s).

Thank you.