The following represents a project with known activity times.All times are in weeks.

Activity Immediate Predecessor time

A - 4

B - 3

C A 2

D B 7

E C,D 4

F B 5

G E,F 4

5. Using the data in Table 13-4, compute the slack time for activity D.

(a)0

(b)5

(c)3

(d)6

(e)none of the above