Answer:
The correct answer is letter "A": is a high-level plan that indicates a few significant accomplishments anticipated over the life of the project.
Explanation:
In project management, a milestone schedule lists different activities necessary to accomplish certain goals. This tool is useful for managers to measure the progress of a project and determine if there are delays. In the schedule milestone, executives mark the completion of certain activities resulting from the operations of the business establishing a formal ending.
Usually, this schedule is helpful to validate the performance of work with shorter deadlines that do not represent major accomplishments for the project.