Which of the following enables a portfolio management office (PMO) to measure the aggregate portfolio performance of each project?

Portfolio performance at the aggregate level is fundamentally about strategic alignment - are the right projects being done - and value realization - are they delivering expected returns. Tracking organizational objective alignment and each project's ROI status gives the PMO a dual lens on effectiveness and efficiency across the entire portfolio.

Earned value analysis measures individual project cost and schedule performance; sunk cost is not a portfolio performance measure and is generally considered irrelevant to future decisions.

Stakeholder ownership relevance and available budget status are operational details that do not measure aggregate portfolio performance against strategic goals.

Resource availability and time-to-completion are scheduling and resource management metrics; they do not capture whether the portfolio is delivering strategic value.