Final answer:
Option a)Total Slack is the amount of time that the finish date of a task can be delayed before the start of a successor task must be rescheduled.
Step-by-step explanation:
Total Slack is the amount of time that the finish date of a task can be delayed before the start of a successor task must be rescheduled. It represents the flexibility in the project schedule and allows for some delays without affecting the overall project timeline. Total Slack is calculated as the difference between the late finish date and early finish date of a task.
For example, if Task A has a finish date of May 1st and Task B is its successor, with a start date of May 5th, but Task B can be rescheduled to start on May 7th without affecting the project, then the Total Slack for Task A is 6 days (May 5th to May 7th).
Therefore, the correct answer to the question is a) Total Slack.