Final answer:
An agent must not disclose or ask about protected class characteristics of a buyer and should politely decline to answer if asked by a seller.
Step-by-step explanation:
An agent must not disclose or ask about the color, religion, ethnicity, familial status, or other protected class characteristics of a buyer. These characteristics are legally protected under the Civil Rights Act of 1964. If a seller asks about these protected class characteristics, the agent should politely decline to answer and educate the seller about the legal protections in place.