The RGQ Organization Utilizes a Change Log

The RGQ Organization utilizes a change log. What is a change log?

A) It is a document that records all change requests for the project.
B) It is a document that tracks all unauthorized changes to the project solution.
C) It is a document that tracks all characteristics and status of changes that have been received.
D) It is a document that tracks the changes that have been received, including their implementation to the project solution.