Which situation is considered a permitted practice when showing properties?

Focusing on neighborhoods preferred by the buyer irrespective of demographics is considered a permitted practice when showing properties because it aligns with fair housing laws and the principles of choice and autonomy for the buyer. Real estate agents have a responsibility to serve their clients’ preferences and needs without discrimination based on race, ethnicity, or other protected characteristics.

This approach ensures that buyers are shown properties in a way that reflects their individual tastes and desires, rather than being influenced by arbitrary criteria such as the demographic makeup of neighborhoods. Such practice promotes equal opportunity in housing and respects the rights of all individuals to choose where they want to live based on personal preferences rather than being steered towards or away from certain areas based on their background.

In contrast to this, the other options involve discriminatory practices or limitations that can violate fair housing laws. Showing only white neighborhoods to white clients or limiting viewings based on income or historical popularity with racial minorities suggests a bias that prevents equitable access to housing. Thus, focusing on the buyer's preferences without considering demographics is the ethical and lawful approach.