You are creating a project schedule in Microsoft Office Project Standard 2007. You assign multiple resources to each task, and estimate task durations for all project phases. You need to ensure that your resources are not over-allocated regardless of the project end date. What should you do?

A.
Level the entire project, activating the option to level only within available slack.

B.
Level the entire project, deactivating the option to level only within available slack.

C.
Set all tasks to a fixed work type, and then adjust the start and finish dates of each task.

D.
Set all tasks to a fixed duration type, and then adjust the start and finish dates of each task.