Explanation:

- Middle Class:

- Typically includes white-collar workers and small business owners.

- Represents a broad group of people with moderate incomes.

- Often associated with financial stability, education, and professional jobs.

- Upper Class:

- Consists of individuals with significant wealth and assets.

- Often includes top executives, large business owners, and inherited wealth.

- Has more economic power and influence.

- Working Class:

- Encompasses blue-collar workers and those in manual labor.

- Typically earns lower incomes than the middle class.

- May have less access to higher education.

- Underclass:

- Faces economic hardship and instability.

- Often includes those unemployed or part-time workers.

- Struggles with poverty and limited resources.