New PMP Question & Answers with explanation

A sponsor is very upset because they did not know about a project change to reduce the budget. The project manager and project team do not understand the sponsor's frustration, because the change was required and beneficial to the project. What should the project manager have done first?
Select one
During project implementation, a functional manager asks to include additional functionality that will benefit the customer. What should the project manager do?
Select one
During project execution, a stakeholder requests a change to ensure that the final product will satisfy their requirements. What should the project manager do next?
Select one