Which term refers to the working class?

The term "working class" specifically refers to a social class comprised primarily of individuals who earn their living by manual labor or by working in industrial jobs. This group is typically characterized by their economic position, which is often at or near the lower end of the socio-economic spectrum. The working class plays a crucial role in the economy, as they contribute to production and services essential for society's functioning.

In contrast, the other choices refer to different concepts. An aristocrat generally denotes members of the aristocracy, who are part of the upper class with nobility or high social status, often based on wealth, inheritance, or privilege. An advocate is someone who supports or argues for a cause or policy but does not refer to a specific social class. A rebel characterizes someone who resists or rises against authority or control, again not linked directly to a class designation. Therefore, "working class" is the most accurate term that aligns with the question about social class demographics.