Which of the following illustrates a difference in treatment toward groups that is generally considered reasonable?

• A. Classifying people according to race.
• B. Testing for AIDS according to class.
• C. Classifying people according to ethnic group.
• D. Taxing different classes at different rates.

Answer: (D)

The main idea is that some differences in how groups are treated are justified when they serve a legitimate policy goal and apply in a neutral way. Taxing different classes at different rates is a standard example: tax systems differentiate by income or ability to pay to raise revenue and distribute the tax burden fairly. This kind of differential treatment is broadly accepted because it ties directly to economic capacity and public aims.

Classifying people by race or ethnicity, or testing for AIDS according to class, involve decisions based on characteristics like race, ethnicity, or health status. Those kinds of classifications are typically viewed as discriminatory and not generally considered reasonable in policy or constitutional terms, because they target protected traits or health conditions rather than addressing neutral, policy-based concerns.

So the option that best fits a reasonable difference in treatment is the one tied to economic capacity and public policy aims, namely taxing different classes at different rates.