Under the ETHICS RULE, when can an appraiser use or rely on the characteristics of buyers?

The correct choice is supported by the principles outlined in the ETHICS RULE, which emphasizes the need for appraisers to uphold integrity and objectivity in their work. Appraisers may rely on the characteristics of buyers only when such information is essential to the appraisal assignment and does not violate any applicable laws.

This means that if knowing specific buyer characteristics is crucial for accurately valuing a property, an appraiser can consider that information as long as it adheres to legal guidelines and ethical standards. The ETHICS RULE aims to protect against potential biases and discrimination, ensuring that the appraisal process remains fair and grounded in relevant, objective data. Ultimately, this safeguard promotes accuracy in property valuation while upholding the ethical obligations of the appraiser.

Other scenarios listed do not align with the intent of the ETHICS RULE, as they either allow for unrestricted use of characteristics or imply legal loopholes that undermine ethical constraints.