Câu 174: APM-001: Associate in Project Management

The zero duration of milestones in project planning occurs because milestones:

1. A. Are unpredictable and challenge the Plan Schedule Management process.
2. B. Occur at random times in the project plans.
3. C. Represent a moment in time such as a significant project point or event. — đáp án hiện tại
4. D. Represent both significant and insignificant points in the project and are difficult to anticipate.