What can be done to avoid duplication of efforts and to increase stakeholder awareness when...

ACMP emphasizes that project and change plans must bealigned, not competing or siloed. Alignment ensures technical deliverables (project management) and people-focused activities (change management) reinforce each other, avoiding duplication and confusion. Making one plan the “master” (A, B) risks imbalance, while independence (C) causes misalignment. Thus, the correct approach is option D — alignment between project and change management plans.

(Reference: ACMP Standard, Process Group 2 – Integration; Activity: Align change management and project management plans to increase efficiency and reduce duplication.)