Question: You have many tasks in a project file and want to convert them into milestones. How can you do this?

1. Recreate the tasks and set them as summary tasks.
2. Set the tasks as summary tasks.
3. Unassign any resources from the tasks, as resources are not needed for milestone task.
4. Change the tasks' duration to 0.

Answer: The correct answer of the above question is Option D:Change the tasks' duration to 0.