The best answer is C because the PMO must first define how the portfolio aligns with organizational strategy before tools, benefits tracking, or feedback loops can be effective. Strategic portfolio management requires clear alignment criteria, prioritization logic, decision rules, and visibility into how each capital project contributes to strategic objectives. Option A is only a tool-based response and does not ensure strategic alignment. Option B is valuable, but benefits realization depends on first knowing which strategic outcomes the portfolio is intended to support. Option D helps improve executive satisfaction but does not establish the alignment structure itself. PMI-PMOCP guidance positions the PMO as a connector between strategy and execution; therefore, defining proper alignment to strategy is the foundational step.
Reference: PMI-PMOCP Study Guide: Strategic Alignment, Portfolio Management, Strategy Execution, Executive Governance.