Which of the following is the MOST likely target audience to be notified of the achievement of a key milestone in a project schedule?

A company recently went through a project requiring new equipment, new software, and retraining of personnel. This is MOST likely a result of:

A project manager at a projectized organization is resource leveling the upcoming phase. The project manager notices one of the resources is assigned with 20% of allocation to a secondary project. This situation limits and jeopardizes the commitment date.
Which of the following should the project manager do NEXT?

V project manager needs to identify the resources assigned to a particular task. In which of the following documents can this information be found?

During an ad-hoc meeting, the PM notifies the sponsor that while the project is on schedule, material costs have increased and the project is over budget. To save the project, the PM request a material contract with a less expensive vendor. The sponsor approves the change, and project comes in within target tolerances. The company, however, receives numerous stakeholder complaints.
Which of the following is the MOST likely cause of these complaints?