If someone has no way to make money but to sell his own labor,then he must be a member of what social group?

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The proletariat refers to the social class made up of individuals who only have their own labor to sell and must work for wages to survive. This group is typically seen as the working class and is distinct from the bourgeoisie, who are the owners of capital and means of production. Bureaucrats and capitalists may also have other sources of income beyond selling their own labor.

If Someone Has No Way to Make Money but to Sell