In PRINCE2, a Team Plan is a type of plan that might only be produced for very large or complex projects. It is typically more detailed and is specifically designed to manage a segment of the project within a certain team or group. This plan provides detailed guidance on the delivery of the products assigned to the team within the constraints set by the Stage Plan.References: (PRINCE2 7 Foundation Handbook, AXELOS)

When a project manager plans to keep the CO2 emissions of the project aligned with the business strategy, this addresses 'benefits sustainability'. This aspect involves ensuring that the project's outcomes and benefits are sustainable and align with broader business strategies, such as environmental objectives and corporate responsibility goals.References: PRINCE27 Foundation documentation on sustainability in project management.

The missing word in the sentence is "processes." PRINCE2 is a method that addresses project management through four integrated elements: principles, themes, processes, and tailoring the method to suit the project environment. The processes component includes a series of steps and activities to be carried out during the project's lifecycle. References: PRINCE27 Foundation Handbook and official training materials.

During the Managing a Stage Boundary process, the Stage Plan for the next stage is created and submitted for approval. This plan outlines the work to be done in the upcoming stage and is a critical element for Project Board review before the next stage can commence. References: PRINCE2Foundation Training Manual; PRINCE22017 Foundation handbook.

To control the size of the Project Board on a project that involves multiple users and suppliers, creating user and supplier groups is an effective strategy. These groups can represent broader interests and provide input to the Project Board, helping to streamline decision-making processes without overloading the board with members. References: PRINCE2 Foundation manual, PRINCE2 official resources