Final answer:
A stakeholder who needs to be managed closely should be placed in the High Influence, High Interest category in the power grid.
Step-by-step explanation:
As a project manager, when prioritizing stakeholders with a power grid, the stakeholder you will need to manage closely should be placed in the High Influence, High Interest category.
A stakeholder with high influence can significantly impact the project's success, while a stakeholder with high interest shows a strong level of commitment and engagement in the project.
By placing this stakeholder in the High Influence, High Interest category, you acknowledge their power and prioritize their involvement and communication to ensure their needs and expectations are met.