Which of the following statements about slack time and milestones are true?

Which of the following statements about slack time and milestones are true?

1) Slack time represents the amount of time a task may be delayed without delaying the entire project.

2) A milestone is a moment in time that marks the completion of the project’s major deliverables.

3) Slack time allows the project manager to move resources from one task to another to ensure that the project is finished on time.

4) A milestone requires resource allocation and needs time to be completed.
A . 1 and 4 only
B . 2 and 3 only
C . 1, 2, and 3 only
D . 1, 2, 3, and 4

Answer: C