Answer Happy

The following table of probabilistic time estimates (in weeks)
and activity predecessors are provided for a project.
Time Estimates (weeks)
Activity
a
m
b
Activity Predecessor
A
3
5
7
--
B
4
8
10
A
C
2
3
5
A
D
6
9
12
B, C
E
5
9
15
D
Table 9.2
Reference: Ref 9-2
Using Table 9.2, how much slack is associated with activity
C?
Select one:
A.
4.50 weeks.
B.
31.00 weeks.
C.
12.67 weeks.
D.
0 weeks.