In a fixed-budget project, scope or time shifts can only be accommodated by adjusting the schedule or reassigning available resources. Given the CEO's non-negotiable demand, the project manager must: A: Engage the CEO to assign additional support resources (functional team members), easing the burden on the core team. C: Adjust the delivery timeline to reflect the diversion of team efforts, ensuring realistic stakeholder expectations. Option B may lead to burnout and ignores labor policies. Option D risks both efforts being compromised. Option E is ineffective and unsustainable for a project-level task. References: PMBOK Guide - Seventh Edition, Planning and Stakeholder Performance Domains PMI Scheduling Guidelines - Managing Schedule Impact ##############################################