Final answer:
The input to the Direct and Manage Project Work process is Approved Change Requests, which are formal modifications that have been reviewed and authorized for implementation into the project.
Step-by-step explanation:
The Direct and Manage Project Work process is a critical part of project management within the framework outlined by the Project Management Institute (PMI). One of the inputs to this process is Approved Change Requests. These are formal proposals for modification to any document, deliverable, or baseline. They are typically reviewed and approved by a Change Control Board or the project sponsor depending on the project governance structure. Once approved, these change requests become inputs to the Direct and Manage Project Work process, where the project team acts upon them to implement the changes into the project's deliverables or work processes.
Therefore, the correct answer to the question is: A) Approved Change Requests.