Input into a project's requirements is needed for clarification. With which of the following roles would the project manager MOST likely consult?

A project risk manager focuses on identifying and mitigating risks, not on defining or clarifying the substance of project requirements.

Stakeholders are individuals or groups who have a direct interest in or are affected by the project, making them the authoritative source for what the project must deliver. They possess the domain knowledge, business context, and expectations that define and clarify requirements. Consulting stakeholders ensures that requirements reflect actual business needs and reduces the risk of delivering the wrong outcome.

A project scheduler manages task sequencing and timelines and does not provide business input on what requirements should entail.

A project coordinator handles administrative and logistics tasks and is not a source of authoritative requirements input.