Which is a main element of the management control practice?

What has as its purpose - to collate key information for senior management on those change initiatives that will deliver the greatest contribution to the strategic objectives?

Which is one of the keys to success of the portfolio management principle: strategy alignment?

What does portfolio management provide strategic planning with?

Which portfolio definition practice checks prioritized change initiatives against factors such as:
timing; coverage of all strategic objectives; impact across the business etc?