In an agile approach, the project scope is not completely defined upfront, but rather evolves and emerges throughout the project lifecycle. The project manager's role is to facilitate the collaboration and communication among the project team, the product owner, and the stakeholders, and to ensure that the project delivers value and meets the customer needs. One of the ways to do this is to help the sponsors and stakeholders craft the product vision, which is a high-level description of the product's purpose, features, and benefits. The product vision provides a clear direction and alignment for the project and guides the development of the product backlog, which is a prioritized list of user stories and other requirements. The project manager should also bring the team and the product owner together to clarify the expectations, assumptions, and constraints of the project, and to review and refine the product backlog regularly. This will help to ensure that the project scope is defined and validated iteratively and incrementally, and that the project delivers the most valuable features to the customer. The other options are not appropriate for an agile approach. Meeting with the general manager and convincing them to return to using predictive approaches would be counterproductive and disrespectful of the company's decision to adopt agile. Asking for a budget increase to implement a double-check process would be wasteful and unnecessary, as agile relies on frequent feedback and testing to ensure quality and customer satisfaction. Asking the general manager to review every requirement would be micromanaging and interfering with the product owner's authority and responsibility to prioritize and manage the product backlog. References: PMBOK Guide, 6th edition, Chapter 5.1.2, 5.4.2,
5.6.2, Agile Practice Guide, 1st edition, Chapter 2.2, 2.3, 3.2