please need it now and pleade write not need photo

B) Given the following project information

Activity	Immediate Predecessor	Optimistic time	Most likely time	Pessimistic time
A	-	2	4	6
B	-	3	4	10
C	B	11	7	5
D	A	14	18	22
E	A	3	5	9
F	C, E	2	3	4
G	D	4	3	5
H	F, G	6	6	6

I) Draw or explain the activities relationship with the immediate predecessors. (3 Marks)

II) Calculate the expected time for each activity. (4 Marks)

III) Calculate the variance in each activity. (4 Marks)