Final answer:
Broker A should disclose his interest in buying the property listed for sale in order to satisfy the NAR code of ethics.
Step-by-step explanation:
In order to satisfy the NAR code of ethics, Broker A should disclose his interest in buying the property that he listed for sale.
This means that he should inform the seller and any potential buyers of his intention to purchase the property. He should also follow any guidelines or procedures set by the National Association of Realtors (NAR) to ensure transparency and fair dealing.
By disclosing his interest, Broker A demonstrates integrity and professionalism, and abides by the ethical standards set by the real estate industry.