PMP Practice: Categorize stakeholders

Ishaan Goswami is managing a municipal water infrastructure upgrade project for the city of Ridgemont. During initial stakeholder identification, he has mapped 47 stakeholders across city government, neighborhood associations, environmental groups, and utility contractors. The project charter authorizes a 14-month timeline and $8.2M budget. Dante needs to prioritize which stakeholders require the most intensive engagement strategies, as his communication resources are limited. Several stakeholders have expressed strong but conflicting opinions about pipeline routing through historic districts. The sponsor has asked Dante to present a stakeholder engagement approach at next week's steering committee meeting. Which technique would be MOST effective for prioritizing stakeholder engagement efforts?