After the project scope has been established, a request is made to add features and functions. What should the project manager do?

The correct answer is "Follow the change management process." Any request to add features or functions after the scope is established constitutes a change to the project baseline. The change management process, as defined in the project management plan, outlines the steps for submitting, reviewing, approving, and implementing such changes. This ensures that changes are evaluated for their impact on scope, schedule, cost, and quality, and are formally approved before implementation. "Follow the requirements management process" is incorrect because while new features are requirements, the process for adding them after baseline approval falls under change management. "Follow the stakeholder engagement process" is incorrect as stakeholder engagement is ongoing, but it doesn't dictate how to handle formal change requests. "Follow the risk management process" is incorrect because while changes can introduce new risks, the primary process for handling the request itself is change management.