If you deny them for information received on a credit report, you include the CRA information. This is so they can go back and
1 - get a copy of the credit report so they can
2 - dispute anything that they feel is incorrect
The checked box indicates that part of the denial reason is for information received from a credit reporting agency. That would be an incorrect statement if they were not denied for credit.
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Integrity. With it, nothing else matters. Without it, nothing else matters.