The project of a dam is being managed by you. So you are now documenting specific actions to be performed to produce the project deliverables by setting milestones in the project schedule. Which of the following statements is true about milestones?
A. All milestones are mandatory by definition.
B. Milestones have zero duration.
C. Project charter does not include any information related to milestones, due to it is already in the project schedule.
D. Milestone charts are included in the project document called Milestone list.