This defines what is inside the project and what is outside.

A) Project objectives
B) Stakeholder agreement
C) Project scope
D) Project execution plan
E) Availability of resources

Project scope refers to the boundaries of the project, defining what is inside and outside of the project. Project objectives refer to the goals of the project, stakeholder agreement refers to the alignment and buy-in from parties involved, project execution plan refers to the roadmap of how the project will be carried out, and availability of resources refers to the availability of necessary resources to complete the project.