The project manager should take the following actions to ensure proper stakeholder involvement: * Prioritize stakeholders based on the project phase and need (Option A): Not all stakeholders need to be involved at all stages of the project. The project manager should identify and prioritize stakeholders based on the current phase of the project and the need for their involvement1. * Develop a stakeholder impact influence matrix to determine the level of engagement (Option B): This matrix helps in understanding the level of influence and interest each stakeholder has in the project. It assists in determining the level of communication and engagement required for each stakeholder1. * Perform a stakeholder assessment to align with the project objectives (Option C): A stakeholder assessment helps in understanding the stakeholders' interests, expectations, and influence. It ensures that the stakeholders' needs and expectations are aligned with the project objectives2. Including all stakeholders in the stakeholder engagement plan and providing the same level of communication (Option D) may not be feasible or efficient as different stakeholders have different levels of interest and influence in the project1. Classifying and ranking stakeholders based on their positions in the organization (Option E) may not always reflect their actual influence or interest in the project1. References:1: Planning effective stakeholder management strategies to do the same thing! - PMI2: How to Improve Project Stakeholder Engagement in 4 Steps - BrightWork.com