When slack of an activity is negative

[A].	it represents a situation where extra resources are available and the completion of project is not delayed
[B].	it represents that a programme falls behind schedule and additional resources are required to complete the project in time
[C].	the activity is critical and any delay in its performance will delay the completion of whole project
[D].	all of the above

Answer: Option B

Explanation:

No answer description available for this question.