Answer:
Well its called Fair Credit Billing Act but A is close enough so I guess A.
Also A is The Fair Credit Reporting Act (FCRA) is a federal law that regulates the collection of consumers' credit information and access to their credit reports.
Also the Truth-in-Lending Disclosure Statement provides information about the costs of your credit. Your Truth-in-Lending form includes information about the cost of your mortgage loan, including your annual percentage rate. So it could be that one too..
