The following table shows three time estimate (Optimistic, Pessimistic, and Most likely) of a project with 5 activities:

Activity	O (Optimistic time)	M (Most likely time)	P (Pessimistic time)	Immediate Predecessor
A	1	3	6	-
B	3	4	5	A
C	2	4	6	B
D	6	9	10	A, C
E	2	6	10	D

Conduct a PERT analysis and find the critical path of the project.