According to Marxist Conflict Theory, which group is considered the working class that sells their labor for wages?

According to Marxist Conflict Theory, the working class is known as the proletariat. This group includes people who do not own the means of production, like factories or land, and must sell their labor to earn money. For example, a factory worker who assembles products on an assembly line is part of the proletariat because they rely on their job to get paid and support themselves and their families. Marx believed that the working class is often exploited by the ruling class, or bourgeoisie, who own the production and profit from the workers' labor. This conflict between the two classes is central to understanding social dynamics and economic inequality.