The correct answer to this question is to include project plan updates. Integrated change control is the process of reviewing all change requests, approving changes, and changes to the deliverables. In other words, measuring the impact of change on all of the project limitations.
Whenever a change is requested, the change will impact various aspects including cost, quality, risks, resources, or scope, needs to be evaluated. The inclusion of project plan updates would be the role of the project manager to include them. The project manager should, however, prevent any need for changes at this will cause time to be wasted.