I'm pretty sure during the practice exam on here, I found at least one question about the last task during project close and it was releasing the resources. You definitely don't want to release all resources during executing because during project or phase close, you need some resources to perform closing tasks.
This is a vague question. Are you referring to project resources in the context of releasing team members (human resources)? In that case, you are in the Closing Processing Group.
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