Explanation
In the Scrum framework, the project schedule is replaced by two artifacts: the product roadmap and the sprint backlog. The product roadmap is a high-level overview of the product vision, goals, features, and milestones.
It provides a long-term direction and alignment for the project. The sprint backlog is a list of tasks that the team commits to complete in a sprint, which is a short iteration of work. It provides a short-term plan and focus for the project. The sprint backlog and the scrum board (A) are not enough, as they do not show the big picture and the long-term objectives of the project. The product backlog and the scrum board (B) are not correct, as the product backlog is a list of user stories or requirements that are prioritized by the product owner, not a schedule. The sprint plan and the product roadmap (D) are not accurate, as the sprint plan is a document that describes the scope, objectives, and deliverables of asprint, not an artifact that replaces the project schedule. References: Agile Practice Guide, pages 17-18, 21-22, 77-78; PMP Examination Content Outline, pages 9-10, 13-14.