Which of the following consumes the greatest portion of a project manager's time over the...

Throughout the life of a project, the project manager spends the most time on control activities. This includes monitoring progress, managing changes, addressing issues, ensuring compliance with scope, cost, and schedule, and keeping stakeholders informed. Control is ongoing from initiation through closeout.

A (Documentation), B (Meetings), and C (Planning) are important but represent specific tasks or phases, not the most time-consuming activity overall.