Slack represents the difference between the

earliest completion time and latest allowable time
latest allowable time and earliest completion time
earliest completion time and normal expected time
latest allowable time
✅ The correct answer is option A.

The correct sequence of phases in value engineering is

creative phase, information phase, investigation phase, evaluation phase
information phase, creative phase, investigation phase, evaluation phase
investigation phase, information phase, creative phase, evaluation phase
creative phase, invest
✅ The correct answer is option A.