When slack of an activity is zero, the activity is critical and any delay in its performance will delay the completion of the whole project.

When slack of an activity is zero, the activity is critical and any de

1.	When slack of an activity is zero, the activity is critical and any delay in its performance will delay the completion of the whole project.
A.	Yes
B.	No
C.	Can't say
D.	None of these
Answer» B. No