In the past 30 years, the social class categories that have seen their incomes rise substantially are the privileged classes.
A social class can be defined as a social group which comprises two or more people who share similar values, level of wealth, economic status, expectations and interact regularly.
In the past 30 years, we can infer and logically conclude that the social class categories which have seen their incomes rise substantially are the privileged classes.
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Complete Question:
Which of the following social class categories have seen their incomes rise substantially in the past 30 years? Privileged classes Majority classes O Lower classes Lower-Middle classes All of the above