According to the PMI Agile Practice Guide (Section 7.2: Stakeholder Engagement), managing stakeholder expectations starts with establishing a shared vision and involving stakeholders in key activities like iteration reviews. This ensures transparency, feedback, and alignment on progress and priorities.

Mike Griffiths in the PMI-ACP Exam Prep Book (Chapter 4: Stakeholder Engagement) supports the idea that a common vision and shared goals foster trust and improve stakeholder relationships.

Option A is correct: a shared vision and active involvement lead to better stakeholder alignment.

Option B and C are partially right but limit collaboration or dismiss stakeholder input.

Option D is inconsistent with agile’s emphasis on open, continuous communication.