正解:A
The project manager should plan a working session focusing on the scope, vision, and mission of the initiative, as this is the best way to increase the project's chances of success. By involving the research and development department and other relevant stakeholders in defining the project objectives, scope, and deliverables, the project manager can ensure that the product development aligns with the organization's strategic goals and meets the customer's needs and expectations. This will also help the project manager to establish a clear and shared understanding of the project's purpose, value, and benefits, and foster a collaborative and innovative environment.